[Niwa]

I would just call the flopraise since the raise can be all the way from xK to a set.
By doing the big re-raise on the flop you can get away from your aces if raised but you're letting ALL the weaker hands get away.

I would just call his raise and depending on what he does either bet or raise. If he re-raises I would automuck.

I dont see any hand worse than yours paying you off when all-in except for way overplayed AK.

Without reads I really cant see why you have to go broke against a set here.