hoverit-RCU,

Did you know that Top Flight once produced a .40 size contender that had your alterations as options? You could build the wing with dihedral, and the inverted engine was standard. There was one difference though, the rudder was tapered so that it was thinner at the top. I think they changed it to give more leverage, because of the adverse yaw issue. Still, the contender should be a good low-wing trainer.