Thats quite the engine, but Im not surprised you're rewiring the whole thing if that butchered stereo loom is anything to go by. And 0awg for the battery... hefty lol.
I agree with bobdope2002, you need to do something about that rear end - its got a very 90s fast and furious on a budget look about it, which the car thoroughly doesnt deserve.
looking good:d id stick some normal 180 sideskirts on and not sure about the spoiler, perhaps a accord spoiler perhaps?
glad your taking the time to tidy everything itll be worth it in the long run