Okay, so I took your advice about no multiclassing. This is what I've come up with.
Syl, level 6 Changeling Egoist (racial subs at 1st and 5th, no 3rd)
Ability scores (32 pt buy): 8, 10, 14, 17+1, 13, 14 (wis 13 for psionic meditation, come epic feats)
PP/day: 49
Feats (in order of acquiring)...