What is wrong with the stock motor? I am using a 720 ma 3 cell pack with hs55's, a gws receiver and a 20 amp speed control that came with the nicer dean style plugs. It has all the ump I need with the 3 cell. I wouldnt get a new motor if it where me(and I didnt lol) and just get the receiver and 3 cell pack and go fly.