I finally bit the bullet on a giant scale B17. It should be at the house by the end of next week and on the workbench shortly after that. This won't be an overnight deal, more like several months. After allot of debate I have decided to go with the Ryobi 4 strokes, partly because the performance makes sense, they sping the right prop at the right rpm and their weight is fine. But mostly the sound and practicality sold me. I can finish the plane any way I like without concern for fuel proofing as well.

Wingspan: ............138"
Length: .................98"
Wing Area: ...........2250sqin
Weight: ................45 - 55 lbs
Requirements:
Engines: .......4x - .91~1.2ci 4-stroke glow or 20~30cc gasoline
Servos: .........4-engine, 2-aileron, 2- flaps, 2-elevator, 1-rudder, 1-steering, 2-langing gear

http://www.wingspanmodels.com/Produc...9/B17FG-9.html