MODELTECH MAGIC has extra parts
The two pieces of covered wood are to brace the vertical fin to the fuselage. Trace around them on fuse and vertical fin, remove covering and epoxy in place. Cut the clear tubing in 1/8 inch pieces and use to secure clevises.
Mine weighs in at 3 lbs 13 oz. Magnum 52FS and HS-425's x 5.