Since you have full access to undercarriage now, Will you mark lines/cabling? and have a schematic?
Also, will you be UnderCoating anything?
Yes! Marking lines and wires is a must in my world. I have repaired way to many electrical problems in other rigs and airplanes not to mark the CRAP out of everything. I am even buying a special label maker just for that purpose. I will have a schematic, for reference later
I am giving serious thought to undercoating some stuff while the rig is still generally clean. A quick power washing would have it ready to go.
I LOVE POR 15 and it is usually tough stuff. I tend to brush it on. I will probably use Raptor Liner on a lot of the truck itself and some other things as the build goes along.