Raz, we don't need 2pair or trips, we've got flush and straight too. I'm not worried about losing to a bigger flush, villain is likely to have pair, not a suited hand, though AKs is in his range. The reverse implied odds are not massive, the most likely way we're paying him off is if we hit 2pair on the flop and the board pairs on the turn and river. It's not going to happen often enough to counter the huge positive implied odds we have.

With the relative stack sizes, we can get away with stacking off and winning just once in twenty and still make money. We're hitting more than 1 in 20 flops with 2pr+.