Evil1- The system was all purchased at cost with the exception of the Alpine Head Unit, Processor, and CD Changers. So actual cost that I paid is no where near what it should have costed. For example, just the Monster cable portion of the install was over $1400.00 retail for the 1 gauge, 4 gauge, 8 gauge, 16 XLN speaker wire, all of the M1001XLN interconnects, and fuses. However, I only paid $500.00. So I really can't answer your question for the price of everything. Plus, I didn't have to pay for labor.
The RMS for the system is about 2280 watts. However, we all know that a lot of power is wasted in the form of heat. I don't push the system very hard. I basically have an overkill in amplification, but it looks cool and sounds great! All of the gains are turned off except on the Class A 10.0 which is powering the 3 JL 12's. Those 12's are power hungry! All of my tuning is done through the AudioControl 4XS and the processor.
The reason behind using such large amps was to ensure I never reach distortion when turning up the volume to the I.D. Horns and 6 1/2" midbass drivers. As you know, DISTORTION is bad. So, it's obvious that I have plenty of clean power feeding the drivers.
Take care.