I maintain that the potential top speed for any engine is higher for an RC model than C/L - indeed, the lines are massive drag. The F3 speedcup results speak to that.
The D06 is built for wrenching around pylon turns - it is a world class competition model with very, very stiff and strong wing. The all up weight will be minimal. 217 square inches. I ain't gonna fold it. Now as to stuffing it into the ground, that could be a different story.
Biggest challenge - apart from the work to mount and cowl it - is fuel delivery. I'll have to use remote mixture control on pipe or pump pressure, likely will go Perry pump to remote needle. Alternative is bladder to Iron Bay regulator and remote needle but I'd prefer pressure. The venturi is more like a crater than an orifice and positive mixture control seems appealing.