Hanger 9 has a P-51 Mustang TRAINER now. It has removeable clear plastic wing airfoails, fixed gear, pre positionable flaps (convertable to regular flaps) and removeable airbrakes.

It is designed as a trainer, but as your skill improves you can remove the various items.

I know it is available as an RTF, I am not sure if it is available as a plane only. Your LHS can probably tell you that.

Might be worth checking out.