Anyone use a power interver?

[PARAGON]

I have had a larger inverter that I was going to permanently install in the H2 for over a year now. Just never got around to it. My plans are to get a continuous-duty soleniod and mount it behind one of the rear wheel well trims. Have it turned on/off from a switch at the dash and direct wire the inverter to it. My plans were to run some 8 gauge wire from the battery to the solenoid and use 10 gauge for the inverter to the output of the solenoid and ground to the body.

I also was considering do a dual-battery setup and putting an optima battery up underneath the truck at the rear on the passenger side. I could then mount the solenoid very close to it and run the inverter from there. I plan on doing a dual battery setup, I just don't know which route, doing something under the hood or mounting the second battery somewhere else