[Mr.ac]

Holy shit batman.
Sly is right spending that much money on audio is insane.

I keep hearing the word "build" as its some PC desktop or some mmo character. It's not.

First of all how much driving are you doing?
Second OEM+ audio is not as great as it sounds. Your just paying the custom setup and plug and play install. That alone to me is where your money is spent. Pretty good deal if you don't know jack about car audio install.
Thrid, do you really want to spend that much?

In the end it's going to be up to your wallet and your ears.
My advice go to some car meets ask what people have in their rides and listen to them. You'll be surprised with just how inexpensive small upgrades will sound over stock.

Just because a set of speakers are a grand a pop doesn't mean it's going to sound great in your car.
It's like buying race slicks and putting them on a 100% bone stock car.
Will it feel better, go faster? Oh yeah it would, but you'll only be getting 10% of its true potential. Then again if all you do is daily drive, what is the point?

If your just spending money to spend money, remember no one is going to see your set up. Unless you build it to show off.... I mean have it custom made.