Progress... Well, looks like this week I may have some time to make some considerable headway on the wiring. I decided to wire the bed today with all wires run and lenses in place.
I loomed everything before clipping it under the bed. Once I get the bed back on I will finish wiring to the connector and run the tag light lead.
I cut what I hope is the last hole in the firewall (2") for the engine harness and passed the wires thru with no issues. Due to the placement of the ECM the accelerator module wires ended up outside the firewall. I am going to see if there is enough slack in the harness to extend them back inside the cab. I don't want more than about 12" of the ECM harness inside the cab. Since the harness is directly between the accelerator pedal and brake pedal there can't be any interference.
So, tomorrow, more wiring.