Should I buy 2 12'' Rockford Fosgate T1's with amp, enclosure, and wiring for $700?

if the amp can power the subs, then i'd go for it. a capacitor would be very beneficial since you'd be pushing over 1000 watts rms (once again, if your amp can push the subs well). your subs can be in your trunk, but i'd dynamat your trunk so you get less rattling.