Have you ever had a"How did I get here/What am I doing" moment?

Yeah, me too! I made this mistake once already and learned from it - don't work on everything at once. It's so easy to need to figure out the electrical while pulling the gas tank as the brakes get rebuilt and the headliner needs fixing from falling down and on it goes. Pretty soon I forget how things came apart or where the parts/fasteners/rebuild kits are. This time around, it's one section at a time.