1. If hands become listed bonus + con mod, then the Pure TK would be fine with 1/level, instead of bumping it to 2. I think it also fills in the blank with the maths so hopefully utility and combat can happen at the same time without you sucking!

2. Force Blast still has the attack roll AND save issue, so perhaps make it a save vs. nausea instead? Your insides are being forcefully re-arranged, I imagine you'd feel a little ill...

Thinking on what you said about etheral/incorporeal etc with the walls. I smell another feat coming...