Found some pictures. The harness is not in split loom, so it looks unfinished. I wanted to drive it around for a while before I put it back into the split loom.
Showing computer mounting:
I also used the late model radiator and pressure tank. The following pictures show how I modified the core support to do it:
Those brackets are from the stock truck, I flipped them over and swapped sides. I test fitted the radiator then welded them on.
I think you'll find it's been a constant evolution with these trucks. Things just kind of evolved and the placement of components is close if not the same.
Hope it all helps.