[MLG]

Decision point 1:
Either a call or reraise is fine here, its a style thing. I reraise more frequently because I also repop it with crap, but your stack size is very very tricky. Any reraise pretty much commits you, and a push is a massive overbet. So if I repop it I make it 3k to go planning on either calling a push or pushing any flop that's checked to me.

Decision Point 2.
I call here. Raising commits you and only brings along overpairs (and maybe 1010/99). I call and bet 2k on the turn if he checks. If an overcard hits and he bets again you have given yourself a much tougher decision, but that's the price of doing bussiness, decide based on any read you have and bet size. Generally I'd fold to an A/K and call against a Q (although I'd fold to a river bet). Raising the flop works too, but I think calling is better.