Hypter,

I don't think there would be a problem with this modification. You might want to increase the chord of the ailerons to compensate for the lost span, but even that may not be necessary. You could also increase the aileron throws. This plane generally is not expected to have the kind of roll rate that fun-flies do, and the outboard portion of the aileron is the most effective anyway. It's kind of a marriage made in heaven, since the flaps want to be inboard, and the ailerons want to be outboard. As CHassan says, this plane doesn't really need flaps, but if you would get a kick out of it, go for it and don't worry about aileron authority.

banktoturn