Did that price quote include installation?
If i recall correctly this is what i paid for my equipment.
260 for amp
170 for 2 sets of interior speakers
340 for head unit
25 for amp install kit
200 10" woofer and enclosure (including replacement plan)

Thats under $1000 and i installed everything myself. I didnt go and look up everything you had listed but you can match yours against mine (i think the detail are in my signature) to figure whether its worth it or not. The only thing that came from a retail store were the woofers from circuit city. I planned my system for upgrades later, a second amp and a stronger 10". The present configuration has held me over for about 1.5 years, so i guess you can say im please for what its worth. Had i shopped locally it would have been well over 1000 bucks, if they installed it forget about it, and I doubt i would not have been able to find some of that stuff.