Hi, I received my Gee Bee Y this October, and hope to have it ready next spring for flying (other projects...) Engine will be a Enya VT240 V2, its fits nicely under the cowl and should have enough power and weight to encounter tail heavyness...

Prop will be 20x7 or 20x8.
My Gee Bee Y kit has little larger wingspan (2.150mm, equals about 84.5") and has other landing gear. No wire gear anymore, this now is a solid aluminum tube construction of approx 12mm tube diameter with internal spring. Whole thing ends in a y-shape fork to receive the wheel.
We will see!
Speed-Panzer