Wrap Positive Cable w/ Battery Relocation?

If you wire the starter so it's hot all the time, it will be mandatory to have some sort of wiring protection. This is not the recommended method.

If you want to run the big wire inside the car, use a "Ford" type starter solenoid so the big wire will "only be hot when cranking". Keep it outside the passenger compartment if you don't want to mess with the solenoid.

On my car, I ran the big B+ wire from the battery/cut off switch to the starter in the wiring trough along the driver's side floor pan. Worked good. I still used some sheathing around the wire where it comes close to things that could rub against it but I didn't go nuts trying to insulate it. Keep it neat and use zip ties.

What type of cut off switch do you have a 2 or 4 pole?