Well, several months later and $2500 later, I'm done. I might get another amp for the subs later, but being unemployed at the moment makes that a bit difficult.
The Kappa 4x6's ended up fitting fine in the doors afterall, the Kappa 6x9's took a lot of work to make fit. Had to trim up the rear deck a bunch to slide them in. The tweeters? Molded them into the stock location.
Dynamated the rear deck, the doors, the trunk lid, and the license plate.
Got bored (damn being unemployed), so I went out and took some pics of it.
A few things to point out...look at the magnet on that 6x9, its FREAKING huge. Sounds awesome though. Also notice the gap between the amps and the short RCA cable coming off of the sub amp? Uh huh, made it so that hooking up the second sub amp when I get it will be a piece of cake.