Pics of intermediate lighting harness routing

[eric8]

Can anyone provide a good reference photo for me? Specifically, the area where the intermediate lighting harness runs along the inside of the frame rail, (the section behind the rear differential back toward the step bumper mounts). I'm missing mounting tabs on the harness, and I'm trying to figure out how many it is supposed to have, and which holes in the frame rail they go in. This is for a 77 C10, 4x2, standard wheelbase.