yeah the engine is not a problem i have a 91 2 stroke from os along with a 46fx, along with a saito 72 4 stroke. i planned on buying a plane and engine together so engine choice is whatever kit i get. I did notice the warp in the wing after the l.e. was glued on i just figured i would put ot aside til later on when i get a few build under my belt. I have been looking at the great planes ultra sport and putting retracts in it to get a feel for installing retracts thanks for your help mike