I'm setting up power buss bars and ground bars at 4 locations; At the radiator support, dash, back seat area and trunk. I'll use the wiring from the new wiring harness to trigger relays on the electric motors rather than having them power the motors with longer runs.
I'm mounting the battery in the trunk and running a Ford solenoid to the starter so that the rest of car can run off circuit breakers and the starter cable will only have power during cranking. So the red 1/0 gauge wire you see is the starter wire and the two 4/0 gauge red wires feed the front and back buss bars through two 300 Amp circuit breakers.