................. I've decided that I am going to move the battery to the trunk ...................This doesn't completely remove power from under the hood,..................
Check out I believe Moroso is using an improved 4 terminal disconnect switch that is with improved ratings
If you "let's say" build an external "push off" switch actuator plunger for your switch, you could use a sliding sleeve arrangement. In other words, the plunger knob you see on the bumper would push inside a sleeve in the trunk, and push the switch OFF. IF a thief PULLS the knob back out, that's all that will happen......the knob will pull out a short distance. Of course to turn the system on, you'd have to open the trunk.
The thing is, there's just LOADS of crap you can do........I've going to run late "Bullitt" wheels, and I'm seriously thinking of a plastic coated chain with a big lock around one rear wheel. But whatever you do, a tow truck or a roll-back can't be beat