Take out the saw horses to the hangar and assemble them together. I will use carpet backing for cushioning the top. Drill out and counter sink the two screw holes (AN509 10R12) that support the back structure for the fuel tank attach brackets (both side of the fuselage (DWG 38 & 23). Install the 4 screws. This should be a two men job, but I didn't have any one handy, so I used some duck tape to keep the screws in the holes. I started the nuts by hand than used an open ended wrench to finish the job. My wrench was just long enough to reach the nuts inside the fuselage.