System Designing Help

I'm looking to put a system into my 07 Dodge RAM.  It's been quite sometime since I've been in the car audio game.  I'm looking for sound quality, and also loudness (not competition level, but still loud).  I guess I should throw in there, I listen to mostly Hard Rock/Alternative/Metal.  I think I have most of it down.  I definitely need some input on component speakers for the front and regular speakers for the rear.  Here's what I'm currently thinking:

Head Unit:  Kenwood KVT-819DVD

Speaker Amp:  Alpine PDX-4.100

Sub Amp:  Alpine PDX-1.600

Subs:  2 x Image Dynamics ID10

My main reason for the amp and the sub selections are to be able to use them all in small/tight places.

Now as far as the speakers go, I was liking the Alpine R series, but I think they might be too big.  My next choice was MB Quart Reference series, but I heard MB Quart is now garbage.  One other speaker I was contemplating was the Polk Momos, but I've heard they're not worth the money.

I've currently got my eyes on the Diamond Audio D6 series with the silk dome tweeters.  I've never heard these, and don't have a local dealer.  I've heard they were pretty descent speakers however.

I know a lot of people are going to say go Focal all the way, but I'm trying to keep things relatively inexpensive, even though I think they sound awesome.

So what's everyone think?  I'll take any advice on any part of the system.  I'm open minded guy.  

Well, to start, it all sounds really nice to me.  The ID subs will really be nice.  The Alpine Type R's may not be too big with a little work.  It's not to hard to come up with a little working room if ya try a few tricks.  MB Quart was bought by MaxxSonics who owns Autotek, Hifonics, and Crunch.  Now I know their subs went to being manufactured in China with the rest of the units, however they were tested by "Performance Auto & Sound" and were well reviewed, but I believe the Component sets and such are still being manufactured in Germany and are still up to par with the way they always were.  I can't speak for the Momo's but the Signature Reference series from Polk are highly rated though maybe pricier than you're looking for.  I may also recommend Kicker's speakers, or even JBL, ARC Audio, CDT, and the Diamond's you mentioned are all good brands with prices that won't bust the bank.  

Also if you wanted to stay along with the ID brand the ID CTX65CS component sets they make are well reviewed and aren't horribly expensive either, $179 at WoofersETC.com