hero sucks for limping AA.
Ok, harsh but beyond that what sort of range do you put sb on?
Site might help. He called the limp reraise and called a raise oop originally which makes any kx unlikely (maybe KK but meh) I just cant see him having hit this flop, so his hand must have been made preflop so id limit him to AA/KK/QQ/JJ/TT probably but mostly the top 3 of those.
other than that you have what 250left behind and are facing a 200odd pot. I guess im pushing and if he hit that board then meh his play carnt be +ev preflop
i dont think you have enough left behind to c-bet and fold with the preflop action but thats my opinion certainly.