Oh dude awesome! I was also able to procure 2 really nice HEAVY 6 volt batteries that produce 400 amp hours when wired in series. So I'm building a little cover for that and have the inverter and battery bank just be its own thing. And by using those same subwoofer style connectors to connect the inverter and batteries, it does allow me to toss the inverter in the truck if I ever want to. Or the whole battery contraption if I have the need. I like the versatility options.

That website only offers 6 gauge versions, but I'm using 4 gauge wires since again, I have an abundance available to me. Do you know if the pins run large and the 6 gauge may fit a 4 gauge wire?

I ask because the ones I used on the subwoofer were advertised at 2-4 gauge and they were massive.

And the inverter will have a 100 amp cube style fuse on it, which is what the machines at work utilize for this exact set up.

Edit: nevermind I found the bigger ones. I have 175 amp version on the subwoofer so I'm going to stick with that all around for switchability. I like to go bigger to avoid weak links.