He didn't say they carried CDT. And from the brands listed, he could do way better for his money.
OP how much do you want to spend tops? Have you considered wiring/electrical/battery upgrades? With a modest low-powered system you are planning, they wouldn't be necessary, but it is always better to have all your bases covered (especially if you want to upgrade in the future...which you will!).
From the brands listed I would only buy: Alpine, Focal, Morel, Polk, Boston, ID, Rainbow, Peerless, Hertz, Helix, JBL, JL (amps and subs, don't care for their speaker line), Steg (may be out of your price range).
You could do a nice little set-up with a bunch of those brands listed. And if your car is anything like my cousin's 04 WRX, then your car is a tin can and sound deadening is a must! The doors are so light and tinny, if you throw any kind of nice midbass in them I'm sure they will buzz all over. That and road noise is very pronounced in these cars (well at least the older ones). I would have the shop deaden both front and rear doors, the roof, rear deck and trunk at least. I wouldn't want to pay for the labor for deadening, but you seem to not want to tear apart your fairly new car, or else I would be doing the whole floor and underbody too. I love the sound of the turbo flat four though!
Let us know how much you are willing to spend altogether. Consider wiring and deadening into this total. I'm thinking as far as weight/space savings I would get an Alpine PDX4.150 or PDX-5. I would look into the Image Dynamics CTX65CS components and IDQ12v.3 sub (does very well in small sealed enclosures). Of course with all the other brands listed you could put together a bunch of nice systems. It just depends how much you want to spend. By the way, those cars have 5.25 or 6.5 speakers in the front doors?