Have an undercarriage shop replace your springs. It really is not worth the hassle unless you have the proper MB "plate" compressor to remove them. www.************************ rents this tool out for $85 plus a $500 deposit I think. Considering their crappy shipping times and this expense, this job in my opinion is better left to someone else.

As far as installing the Bilsteins go, this is a piece of cake. Do a search and you'll find a wealth of knowledge on this subject. Using a jackstand in conjunction with the car jack, you can replace the front struts without having to remove the springs.

Good luck!

~Paul

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'91 300E, 214K miles