I would go with a 1/0 wire into a fused distro with 4 ga going out of it. Between the battery and the distro I would put at least a 200 on it. Yeah it's a little overkill, but I am sure if you hang here enough and hear the JL haters, you'll switch those amps out for something cheaper, as efficient, cheaper and cheaper.
I figure from a shop a 500/1 is gonna run you like 400 each give or take. You could get 1 amp putting out like 1500 watts + and save some money. Honestly I would not get any of that. I'm sure it is WAY overpriced and you could get a lot more bang for your buck. But that's just me.