I have a 1999 C230 K sport, and want to put some lowering/performance suspension on for not only everyday driving but for autocrossing. I am thinking of either H&R or Eibach with bilstein sports. Firstly how hard would this be to install. I have done suspension on my older bmw 2002 before so I am somewhat mechanically ok, I would really like to just save some money and do it myself but don't want to screw anything up, any ideas or anyone in the seattle area who would help. Is it pretty much plug and play like some cars with the use of a spring compressor or will I need to take the brakes off, etc....