RE: kyosho Kelly F-1
Joe, my auw is 7 1/2 pounds. I dont think your motor is much heavier than mine. My batteries are mounted inside on a battery tray. They are as far forward as possible. Up against the firewall. Im using hitec HS225mg on everything. I think your motor will fly this plane fine. If you do the conversion I think you will be happy with how the plane fly's.
Mark