Granted I've never done pickpocketing or psi or a sniper before, but here's how I'd build what you want.
It'd be quite a bit better if you switched pickpocket for traps and took quick tinkering. I don't see hit and run being good for a sniper, because you take move and shoot penalties and hit & run only works up to your normal maximum. Locus of Control is probably the strongest feat in the game, so I hear, but if you don't care about it, you can use those points from will to give yourself some more int which will free up some skillpoints for elsewhere and let you take premeditation, as well as boost whatever other abilities you'd like more of. When it comes to crafting, you'll want mechanics and electronics for sure just for your rifle (but also infused leather and an energy shield, respectively) and tailoring for stealth gear/infused leather, which is very important to a sniper. I hear there's a fantastic new feat for snipers coming with expedition. As for psi, as said earlier, thought control is great, but so is psychokinesis for stuns and force field. You're lacking in crowd control, though, with no metathermics or very good throwing.
I don't really know how much pickpocket you need, but I've heard that 40 will let you get most stuff.