Hi. I am wanting to build a system to put in my mini van that I am hoping to buy in a couple of months. I would like to have 2 12" Kicker L7 subs but am lost as how to power them amp wattage wise. I would like to not spend a fortune on this, so would like some input as to where to go to buy for the best prices and what brand(s) to go with. Also what all would you suggest that I need to go with it, capaciter etc.Thank you