I suggest you change the paladin's remove disease uses to daily, and eventually give them the ability to remove curse, remove fear (that one makes sense given his Aura of Courage), and break enchantment.

Suggestion for Greater Diamond Soul: In addition to increasing the amount of SR the monk gets, I suggest giving the monk the ability to raise and lower his SR as an immediate action (At 18th level, an improvement from the original Diamond Soul) (Assuming immediate actions exist in Core-only games)

...So what does hold person do then?