If money really is no object, i would get 2 RE XXX 18" in a ported box tuned around 24hz. Walled off. Wired to a RF T4000.1 (i think thats the model number). Then get dual HO alternators, get a bank of 3 Kinetic 2400 batteries with a yellow top up in front.
For speakers i would use Focal off a Sundown SAZ-100x4.
Budget greatly affects what kind of system you can get, and also if you're looking for SQ or SPL.