http://www.crunchyroll.com/naruto-shippuden/episode-276-attack-of-the-gedo-statue-600719 During the third section of the video (which may or may not have already been posted) the blasts of chakra sound and seem to function like Raiton, despite what the wiki says. Whether this is a difference in how it is displayed in the anime and manga or not is beyond me, but I"ll note that anyways.
http://naruto.wikia.com/wiki/Demonic_Statue_of_the_Outer_PathAs stated on the wiki under abilities, the statue already contains chakra and life force of its own, so it does not necessarily have to have the tailed beasts, canonically speaking, in order to use all the abilities depicted, though this is a limitation that can be placed for SL purposes.
http://naruto.wikia.com/wiki/Cloth_Binding_Technique I also cite this as a fuinjutsu that stops the usage of chakra entirely by the victim, as despite the intent being to immobilize the opponent, not all of those sealed by this technique needed to move in order to use their chakra; so while it doesn't state it explicitly, this cloth likely has the power to also bind the usage of chakra, even from a source of unlimited chakra. The subsequent tag put on it prevents the victim from being summoned from the cloth.
Now then, regarding the whole Edo Tensei and Living Corpse thing going on here
(Summary in bold text below):
Dan constantly worried that his ability would be used on the battlefield; as a result, we can assume that, if Kabuto seriously intended on using him, then his technique would not have cancelled out Edo Tensei. However, we are only shown his usage of it once while he is an Edo, and that was on his way out the door, so we do not know for sure. We do know that his soul would have still been bound to the corpse vessel, just as it would have still been bound to his living body in real life, so his technique does not entirely sever the connection between himself and the corpse.
The Living Corpse Reincarnation Technique requires the user to abandon the body of the current host, in the case of Edo, a true corpse, in order to transfer bodies. There is evidence to suggest that the user cannot use this technique canonically while under the influence of Edo Tensei, as that vessel cannot be used to host the ten-tails, and so the user may not be able to utilize their "true form" as depicted in the series by Oro in order to take another body.
The custom or canon "true form" is largely the user's soul attached to a makeshift body of sorts created for the purpose of the technique, and was considered a body modification. So the "true form" may very well require only the user's soul in order to perform.
Also, the user would need to break the bind between their soul and the technique formula, which would result in the end of Edo Tensei as we know it. Whether there is time given to find a new body or not is up for debate, but if there is time, it would not be a significant amount of time. The user could not just wander around in his/her true form for the sake of host hunting in this circumstance.
All of this put together means that, canonically, if you break the contract with the summoner, then you might would be free to also move your soul around as you please, or if the summoner allows such while the control is still present. SL-wise, not being able to perform this technique at all would be a limitation on the technique itself that would not be entirely unjustified considering the what the series has given us on the technique.
Crucial to the body switch, therefore, is the disconnection of the user's soul from the binding that keeps them in the Edo corpse, which would break Edo Tensei and force the user to very quickly find a new body or risk being returned to the afterlife.
I am inclined to agree with Bocc about the Mazo. Nowhere in the manga, the show, or on the wiki pages does it dictate that it is only at a certain level of power because of the bijuu sealed within it.
I will however offer a different argument. In the manga, when it is first summoned it is only allowed one technique. When Nagato summons it it pierces into his back, and absorbs his chakra into it's being to cast out the evil dragon of soul stealing doom.... At least that is how it both looks, and reads. So would it be possible to then claim that perhaps Hazama would have to feed his chakra into the statue to pull such a technique? Or more so, it basically completely incapacitated Nagato the one time he summoned the statue himself... Would it not do the same to Haz? I honestly don't completely understand the nuances of the use of the Gedo Mazo. I mean there have to be restrictions on it's use, yes? We can't have everyone and their mother claiming they can use the statue can we? Should it be like the Jinchuriki of SL? One person, or two people at a time claim the power of the statue? I mean with it played like this, in this way it seems that this technique should have some restrictions placed on it, much like the way they have restricted the Edo Tensei, and the Jinchuriki, and so on.
Just food for thought on that matter.
I also have to agree with the assessment of the bone armor issue...
Hazama may be protected, but imagine it this way. Put a pot over your head... smack the pot with a spoon. What happens? Instantly you're person becomes a center for the vibrations to ground themselves and ease out. This causes excessive disorientation of the person. Now encase one's own body in it, and strike it with a bullet of decent caliber size... say a 7.62 round? I fire these often in training, and teaching people riffle fire. I've seen a caliber round like this mow through solid steal, and punch through the other side from a distance of 40 yards. At 70 yards it punched through the first layer, and struck the back of the steel form, compacting itself within the item, and casing it to tip over... I have never tried a point blank range assault however, I assume the devastation is excessive. Even a .45 caliber round at 30 yards could cause major damage by doing the same thin a 7.62 round does at 70 yards. So if Hazama took this strike, at point blank range the bone armor would literally shatter at the front, and his body would then excise a massive hole right through his internal organs, and blow through the other side. We'd be playing with a guy who literally was blown to bits. Say the bone armor stands though? God forbid we let the poor man die this early in the game. I'm having too much fun with this.
The concussive force alone would flatten the man inside his own armor. Being blown back at such high speeds would involuntarily cause his internal organs to hemorrhage, and a painful internal bleeding to start. Back to the spoon and pot thing. Say are placed in a suspended pot and someone smacks it with a massive spoon. You're entire body would vibrate at to such an extent from a hit it would cause an instant massive headache, extreme disorientation and vomiting... Nausea to extreme volumes. I mean there is a lot of issues with this post, and how he deals with it. That is all i'm saying. And nowhere do we read that a Jashinist magically and instantly heals, and doesn't feel the effects of the attacks.
I mean I can understand that he continues to move regardless of assault on him, but does that mean he's basically a giant tank and takes no damage ever? I think not! We never did see this type of attack on Hidan in the anime... so we cannot claim that he never feels the effects. Can one say if he was caught in a genjutsu that his person would still continue to fight while his mind was trapped in another person's technique?
These are things that I also believe need to be resolved...
Out of convenience I will actually quote this, as it was posted while I was constructing my post:
To put it in a comparison, powerful sound waves also have severe concussive consequences in the series:
http://naruto.wikia.com/wiki/Resonating_Echo_DrillA jashinist has been shown to be able to survive devastating attacks to their person; they have healed relatively quickly as well from punctures and cuts, etc.
However, being decapitated instantly took Hidan out of the fight; thus, though he could live on, he was severely hindered. If all of Hazama' inner organs were decimated in a single attack, then while he might be able to move in a turn or two (that's stretching it yet still imho) he would be completely incapable of immediate movement. Concussive damage would still affect him significantly with subsequent actions, such as the summoning of the Mazo, and he would likely have to wait for himself to recover before utilizing something like that.
After all, the body's chakra network can be considered an internal body network, and if that were destroyed, then the user would be a goner under all other circumstances. In this one, at the least, he would not be able to utilize his chakra for a ninjutsu like the summoning technique (or any for that matter). I personally think complete loss of chakra flow from destruction of the network itself would very quickly kill even a jashinist, but the point of the matter is, Hazama, if suffering from that kind of damage, would not be able to even defend himself let alone summon anything right off the bat.