My bass amp is an lanzar opti7001d which Is rated at 7000 @ .5 and 5k at 1 ohm I'm wiring it to 1 ohm so now my question is I orderd 100ft of knuconceptz 0 gauge which is going to be my power wire with 2 300a fuses upfront. I have 2 d3400's up front and I'm going to be running the 0 gauge to my back battrie which is a d3100 instead of running 2 negative runs would it be fine to ground the amp to the back battrie and then ground that back battrie with 4/0 gauge welding cable that can handle 600 amps? And then just do a nice big 3 upfront with the knuconceptz also? How should my voltage hold up I also have a brand new mechman 270a alt? My other question is where can I order some nice 4/0 welding cable from?