But on the flop I've only seen one 1/2ish pot bet by a very short stack before me. I don't know that 2 other players are going to call yet. I might well find myself in position against a 5xxx.

I understand that this hand and my position is super dangerous and not worth a flop call at higher satkes, esp. your $2000 tables, but I'm not convinced at the $50 tables.