I'd sell the Acura, the Focals, the JL amps, and the 12W7 on ebay. Then, I'd go buy the car I really want, put Dynaudio 240 Esotar components in it off a Zapco C2K 6.0 amp (bought with the money I made) and put the Zapco C2K 9.0 amp I kept on that ID max.
If that's not the response you wanted to hear, the best case out of what you have would be to mod the front doors, install the 6.5" speakers, run those off the 300/4 bridged. Then, choose whatever sub you prefer (I like the ID Max) and run it off the Zapco amp.
Dear Jonathan, I remember you said somewhere that too much watts would cause subs to distort at high volumes. How would you pair the Idmax with the 3000w zapco?
You say it has 300 watts max. Well max usually means peak power which is a bullshit rating anyways. You need to look at the RMS wattage rating and see how that compares to the subs. If it is slightly higher this is good because you can turn the amp half way up in gain and still have nice bass.