Am I out of my depth?

Nice lookin Rig Chief! My project has sort of been on hold due to the cold here in New England. I've gotten the generator running like new and have do e quite a bit of painting. New sink I stalledi. Galley. Lately I've been under the dash with my new best friend (Test Light) trying to ID all the Micky Mouse wiring. It's a real drag! The biggest wow factor will be when I yank that carpet and put down some dark wood-like laminate. Redo windows with nice curtains and a tile backsplash for galley. May even give the exterior a white roller paint job. (Can't look any worse than it does now) as for the suggestions on roofing material. I don't know what I have. It seems to be a solid roll of extruded aluminum. Idk but will absolutely require attention! My wipes still don't work and now my blinkers are not either even tho I have power to the corresponding fuse. The stackable clothes dryer needs fixing and still have to find out why my converter charger is not keeping batt topped off. Bed room and bath still untouched. So much to do. I will keep updating those who are seriously interested in the project