BATTERY RELOCATION

^^^While pretty pricey, that looks like a nice kit. I don't like the positive cable being hot all the time (while the car is being used), but that is easily resolved with a Ford relay. I also didn't see any specs for the circuit breakers but from looking at the rest of the components and the website, I'll bet they're quite capable or a quick call to them would also get the specs.

As for "stiff" welding cable, it's really very flexible. I got all my stuff from BatteryCablesUSA.com. Good guy there to deal with too!