I'm suprised there is not more talk in regards to the Kangke F3D that can be seen here:

http://www.boltonsales.com/boltonsales4_006.htm

This plane looks very similar to a modern Quarter 40 pylon plane, but costs about $139.

I would bet, with the right engine, and a small amount of reinforcing, this plane could hit 150+ Mph with a Jett or Nelson .40.

Then again, you could go with the plane in my Avatar (Vendetta by Lyle Larson). I believe the kit is about $400, and with a Nelson QM40 engine, I've had speeds close to 190mph.

I'm not a big delta fan, because I don't like hand launches, or belly landings. My planes are going to have landing gear.