chinny stop responding to people's posts, you're sending people in the wrong direction, we all dont want ghetto setups that look horrible.
on topic.. you should be fine with stock battery as long as it's some kind of decent deep cycle, adn 0 gauge is always best.. if you get a problem with dimming, use some 0 gauge and do the big three, and weldingsupply.com is the place for wire, if you want clear wire that looks more like car audio wire, knukonceptz.com has the best deals for good quality wire/rca's and all that.