The MAD. MAD! It's MAD I say!
Yeah, Charisma is a nice touch but who's going to roll well enough for all the stats?
Replace Ring the Temple Bell with Stunning Fist, 6th level bonus feat instead of 2nd and Quivering Palm and it's a winner. (Changing it to the 6th gives more of a progression feel, as it's own power progresses).
Think of a way to get rid of the MAD (That's Multiple Ability Dependency for those who don't know, too many stats need to be high) and you've got a winner.
You still get my vote.