It really doesn't need an airfoil, just round off the leading edge. The Lift on the jet is accomplished by the angle of the wing in flight. The slower you go the higher the nose should be, so you get a "High alpha" slow flight. You should be able to fly level at half throttle. Once you nail down the CG it should be a lot easier to fly.
Here is a High Alpha Demo video from 3D Foamy.