Fold the flop. If you give the donk a lot of respect (as you should since his range is hellishly tight preflop and he likely just has pairs + here most of the time) why do you elect to float. I'd rather raise than float since it'll get you a free river for sure, you wont be flatting one just to fold the best hand on turn and you can barrel any A J K Q etc profitably. Floating is the worst option here.