I don't post here much, but here is my oppinion about the chidori topic.
first off, Chidori and Raikiri are the same thing if I'm not mistaken, in the manga/anime where Sasuke uses chidori in the chuunin exams, they say that Kakashi's got the nickname Raikiri (Lightning Edge translated, or something like that) when he split a lightning bolt with it. essentially the same thing if i'm not misunderstanding it.
Second, If I'm remembering correctly, Kakashi could use chidori without the Sharingan (See the Kakashi Gaiden part of the manga just before the time skip) but he couldn't control it well because he moved too fast for his eyes to percieve and react to what was going on around him. The Sharingan increases sight perception, and allowed him to use it well, so I think it doesn't need to be a Sharingan ability, but the sharingan will make it far more powerful (Make the move terrible without it)
and finally, The Drunken Fist thing is kind of already available, don't we got a small bonus for the sake at Ichiraku's?