Which not only would few to none agree to, I certainly wouldn't, but would be quite unnecessary as well and especially if Hyuugas get Tenseigan.
Possible spoilers at this point though mind you, if you'd rather see the movie first.
http://naruto.wikia.com/wiki/TenseiganNow to discuss the nerfs and such. Biggest no-brainer is separation from the moon and Tenseigan altar there, not only would that be beyond broken levels of power to admit to anybody, but it was also seen in movie by Toneri that trying to amass it all to yourself is beyond the human body's ability to contain anyway. Simpler put, you'd just explode, sploosh.
Edit: This would naturally cut users off from stuff like materializing cages and other such things too.
What comes to acquisition, canonically you'd need Byakugan in an Ootsutsuki body. A bit strange considering the moon people were shown getting the doujutsu anyway, they just took em out and sealed into the altar. Perhaps theirs would have turned into Tenseigan at 'maturity' regardless? Who knows.
If we consider Ootsutsuki basically extinct as they are in canon (cept Toneri), we could just take the EMS route; a Hyuugan takes somebody elses Byakugan, if there's no organ rejection then a while of paralyzing pain periods later it 'matures' into Tenseigan. Would be the simplest to be honest, though if you wanted to be real strict about it you could also insist on having Kaguya dna in addition to Hyuuga.
Gudodama, another simple fix. Remove the non-senjutsu pulverization, turn them into powerful glowy green chakra spheres instead. Hell, that's how they function majority of the time in the movie anyway.
Scattering chakra rosary, no need for changing here imo, all you do is basically bombard with the chakra balls.
Silver wheel reincarnation explosion, regulate the power, make it chakra costly proportionate to the power used, and you're good here too. Its not that out of the ordinary, basically just a compressed tornado sideways. Might as well be a beefed version of hakke kuusho.
Golden wheel reincarnation explosion, a giant sword that cuts moon in half? Secondarily a death laz0r? Beam version can function as something akin to beam version of tailed beast bomb, powerful but costly, simple fix. The sword variant I believe could function akin to Susanoo's weapons, ranging from the low level digging hefty trenches along the ground, to chopping mountains in two of stabilized. The more power you want, the costlier it gets. Could even make the stronger versions be either single use or only a few before it forcibly breaks you from the orb usage for a time.
Why Susanoo comparison? Because the shroud could be likened to it and nerfed to work in a similar manner. Thought of it this way; if Susanoo materializes a giant chakra construct, Tenseigan shrouds your body in a similarly massive chakra instead. As for potency, forget about Kyuubi cloak, just liken it to the Eight gates instead. 6-7 gates, depending on your general potency at it and chakra used? Obviously would prevent you from stacking any other body enhancing shit like lightning armor or gates themselves, or you'd just die, explode from too much chakra and strain on the body like Toneri almost did in the movie.
The hypnosis ball things...dunno of these really. Personally I don't see what use they'd be considering general immunity of people to genjutsu on SL, but if you want em then use em. From what I can tell, they just pacify or knock out someone weaker if used up the face, can control them like a puppet if inserted inside the body.
Long range chakra absorbing? Lolno, better just left out. This thing wasn't explained at all, plus its brokenly strong.
Lastly it seems to grant limited control over attracting and repulsive forces, basically pseudo-Shinra tensei and -Bansho ten'in. Don't personally recall seeing the pulling version, but wiki claimed so. In any case, could just treat it the same as the aforementioned two Deva path moves, only no AoE versions, just focused in one direction.