Randy tried to reply to e-mail you sent. I had problems getting out. To answer your question about mounting the upper wing and wing panels. I'll be looking into putting a dowels into the wing tubes. Taping it to 4/40 thread and finding out were the tube ends adding hard wood blocks to the wing panels. Or other option is as you suggested glue them together. Adding flying wires might hold them in as well.
Scott sent the Toro 25 it looks great. If I put the 25 in the moth I'll have to hack-up the cowl for the carb and muffler to fit. The Mag 120 would be much easyer to install. So tonight I'll stair at the plane and engine for awhile figure out what to do. Dan