i used machine screws and nuts to keep the panel levle and in place corners on first than center also only used as much patch as needed as far as how tall the patch used was that kept the taper of the corners correct since the corner patches ar not the correct taper so i used only what was needed
Rollingsculpture, Do you have any pictures of the rear body cross member, the piece between the seat pan and the back of the cab, fitting and installation?