I'm thinking that dual 2 gauge from front to back. A large AGM under the hood. as for the rear, the Glow Voltage Series 3 will give you about 640 amps of power. You may need something even bigger than that,not sure. hit up the Glow Voltage FB page, they may be able to tell you if their product will work. Otherwise, Something like this should suffice.
DESCRIPTION 12V BCI Group GC12 Super Capacitor Bank, Max Power 8,000W, 1,000 Farad Weight Lbs. – 22 Weight Kgs. – 9.98 Length – 12.9 in Height – 10.75 in Width – 7.2 in M6 Terminal Hardware Included 1 Year Warranty DOWNLOAD INSTRUCTIONS PROP 65 WARNING: This product can expose you to chemicals...
4xspower.com
Better to run dual 2/0 ought than 4 gauge to the amps or a combination of 1/0 and 4 gauge. Fewer batteries, less wire, run everything off the lithium bank, use distribution blocks for power and ground.
One of these for the dual +/- ( this is what i'm running 4 amps off of)
50 feet of red
50 ft of black
Leaves some over to wire up the big amp.
2/0 to 1/0 reducers
Parallel grounding
https://www.bestcaraudio.com/car-audio-myths-you-cant-ground-a-car-audio-amplifier-to-the-battery/