Think ace high with a gutshot draw is good here?

I think 7x is a bit much preflop. If the table is terribly loose and this is the kind of bet you need to isolate, so be it, but the continuation bet out of position against 2 players should be out of the question then. Of course, what are you doing reraising him when he raises behind you? Just fold to the raise.... I don't understand your thought process at all in this hand to be honest...