E39 M5 question/opinion......?

Hey y'all, just want some quick opinions and answers here..

I need to know where I can find some seat brackets to mount these in my 2000 M5, or if I'll need some custom work done, here's a link to the seats:

http://cgi.ebay.com/ebaymotors/SPARCO-RACING-SEAT-...

I like them because they're lightweight, and I need new seats anyway.

I have a 2000 M5 project car that I finished up, and I've got time and some money to make it a little more "me". I love the idea of the e46 M3 CSL, but what do you think of a more hardcore e39 M5?

And please, please leave out any "rich kid" comments and sh*t like that, I'm not rich, nor are my parents, I just took out some loans and I want my car unique.

Now I'm thinking of making my own homemade version of an M5 "CSL", i know they dont' really exist, but the idea intrigues me. No, I wont put the CSL badge on the trunk, but what do you think about the VIS Carbon fiber vented hood, VIS carbon trunk, lightweight seats, removing some unnecessary stuff (sound deadening in trunk area) for weight saving area?

At my school, my M5 dynoed in at 346 to the wheels, right around where it should be. For the engine I've got plans for the Shark injector programmer, modified air intake (air intake tubes getting air from fog light holes), Rogue underdrive pulleys, custom modified exhaust, some drilled and slotted rotors with some better (hawk) pads, and my Toyo Proxy sticky tires?

Thanks, I look forward to hearing from you all!