need a box builder

I am in the market for either a pair of single, or a dual, subwoofer enclosure/s. The enclosure/s will be for two Sundown SA12 (2 OHMS DVC) subwoofers, powered by a Soundstream TA1.3000D amplifier (1400RMS@2 OHMS). They will be going into the rear area of an extra cab, S10 pickup. I listen to a...