For what your getting, sounds too expensive to me.
I have:
Profile 800sx (600w rms bridged) running 2 JL Audio 12w0's 8-ohm subs. Which put a 4 ohm load on the amp bridged. I pioneer hu. (head unit is never overpriced, if you want a sweet one its gonna cost money, so if you want a hard drive or anything special its expensive). The amp install kit is like 40-50 bucks. And with my 140 dollar head unit my total system price was like 500 bucks. 1000 is alot of money for a 1 10" system. If i were you, id forget the componet speakers for now and just do the subwoofer setup. Save some money until u get enough to add those later. The stock speakers in the contour don't suck. They are actually pretty darn good. As for the install, I would do it myself. It is realy easy. The only reason it takes a while is because you alot of wiring to run. Should take you about 2 hours if ur ok at doing it, and about 4 if you suck at it

. If you need help installing contact me. There are only 3 wires.
I recommend that you try and get some subs that will run you about 150 each to 200. get the size you want to run for a while. Because i got 12" subs so that i could eventually get really good 12" subs and they would still fit in the box. Find out the different kinds of subs he sells there. Throw down that list on the forum and we'll help you pick out some winners!
I dont know much about performance on a car, but i know alot about car audio. I'd like to help.