I used a set of shortened Primary Force landing gear, The vertical fin/rudder is smaller, the flaps are 1/4 sheet and 2/3 less area, 3/8 nose tripler, tip weight box and leadout slider, Du-Bro pinned hinges and carbon tube push rod. The fuselage has large holes in the rear section and I added another above the wing then sheeted the fuse. with 1/64 ply.