Please dont take this as a flame or jab at you, but you have about a 1/2 dozen threads between here and AH asking which sub to choose. You have HUGE room (5400cf) if I remember. IMO, you either need the VTF15 or the Empire (figuring that your budget is about 1k). IF you could up that to about 1300, then I would say the FV15HP would be your best bet. If you dont want to spend that much, THIS
would be a crazy steal at $550 shipped if its in mint like the seller says. Then you could add a second LFM-1 EX as your funds would allow.
Best of luck to you!