I say keep it at its current progessions. Just take all the special abilities except for Hands and pu them in a list. Split up the ones that scale into different abilities. Give them prereqs equal to what they have now. Turn the unarmed one into a special ability, and leave pure as an ACF. Replace the current prrqs by saying certain abilitys are unavailable.

Ill probably work a little on it sometime tonight or tomorrow morning if you just wanna see what I mean lol.