Finally got my hands on some money to play with and this is the set-up iI'm thinking about running.
Pioneer DEH-6300 head unit
(4) 13av.2 Elemental design subwoofers
(4) JL 1000/1v2 Amps
and all of my mids and highs powered by a two 600 watt 4 channel rockford fosgate amps.
And it all going into a custom built subwoofer box. Exactly 11.23 ft3.