I am getting whatever I find in the junkyard that is in good condition and dark blue for about $35. As for the stereo, I have 3 amps- a 2 channel Alpine V12 for the subs (that will be running bridged mono in a 1 ohm load), a 4 channel Alpine for the satellites, and a 2 channel Alpine for the...uhh.. I haven't figured that one out yet. It might find it's way in the pickup instead of the Cutlass. I also have 6 10's and 2 12's to choose from when it comes to subs, but I will probably use the Alpine 10's I have to keep the theme going in the trunk. Plus, they need less air space than the 12's, and I am not building an SPL car. That and I listen mostly to rock, metal, easy listening and talk radio so I don't need eardrum-shattering bass.
As for the wiring, I stripped out the factory speaker wiring already and ran RCA's in those locations, and speaker wire in another location already. All I need to do is add the power and ground wires for the amps. I even have the dash wiring kit already done because I had an Alpine before and the "new" CD player I have now is also an Alpine. Most of the stuff came out of a friend's Altima that he traded in around 2001, and I got the stereo stuff from him then. The install was only about a year old when I got it, so the stuff is in real good shape. I figured out that with the way I plan to wire it, if I actually use all 3 amps I will have 975 watts.