No question: bigger is better. My 1/3 scale Ercoupe flies like a dream - G62 powered, NACA 2418 airfoil, 22/10 prop. Attached is a photo. Airplane is Ceconite covered with Latex paint, and weighs 30 lbs. This one has a one piece wing. Just finished another version of the same airplane with a three piece wing - split at the edge of the ailerons, leaving the landing gear fixed to the airplane. Wings have aluminum tube spars - plug in - only two screws that go into the spars makes for simple assembly. This airplane has a G62 engine but a 22/10 Mejlyck prop - just goes a little faster. Weight - still 30 lbs.

I wonder how much the Balsa USA weighs? What engine do they recommend? And yes - in my opinion - $900.00 is out of line. I build the complete airframes for my scratch built models, covered and painted, for less than a hundred bucks apiece.