What have I gotten myself into?

Nope seems that the truck harness has wires in areas I don't need them and no wires where I do need them soooo it's taking a bit of work. We are going to do a completely CAD'ed out diagram when we are done AND I might post it here depending on how large the file becomes. Heck I'm sitting here right now with the 2 Factory services manuals open and I'm comparing the harness pin outs and writing down things like " 03 has no wires for a bank 2 down stream o2 sensor but it will be disabled so don't worry about them" and of course my wire colors don't match my pcm pinouts so we are remapping about 2-3 hundred wire colors.