BATTERY RELOCATION

0/1 gauge cable: Trunk => into pocket between body and interior panels => into door scuff plate wiring channel after some persuasion => under carpet => through new grommeted hole in firewall to starter.
Same here except I used 1/0 welding cable due to its flexibility. And this cable is dead except during crank as I use a "Ford" relay in the trunk by the battery to only energize it when I crank the engine. This prevents any future chafing/rubthrough concerns as a short would be pretty evident if it only occurred during crank.