I still have the truck. but I took the parts off a long time ago. If I remember right, the only mods
to the truck itself are the holes drilled in the sides to mount the parts. The trucks don't come with these holes. They are a field mod. Mine had been drilled but The truck didn't come with the parts. I managed to get a bunch of parts, but some were M880 and some were M1008 so none of the holes lined up. Also some of the strps that have the turnbuttons were too long and had to be
shortened. None of the turnbuttons worked so I bought abunch of new ones, but the new ones had two holes. I made a jig to drill two holes in the rail for each turnbutton and that worked out ok.
It took me a while to find an actual cover that worked.
Sorr I don't have any pictures, but it is pretty straight forward. You jst need to measure carefully so that the top matches up with the turnbuttons.