dus10lee....Since you have not located gutter pipe for the fuselage, build a SPAD that uses aluminum square tubing for the fuselage. Stores like Lowe's sell an 8 foot section for about $25.00. The trainer is VERY indestructible then. Make the wing like the SPAD DOMINATOR, using two spars. In between the two spars, at the middle, add a piece of aircraft plywood and a 1/4-20 NC blind nut. A steel bolt thru the aluminum tubing anchors the fuselage to the wing. A nylon bolt near the wing trailing edge anchors the wing to the fuselage. The engine attaches like on a SPAD3DT. Do a search under my