You can get them for $59 or so from Potomac German Auto...
www.pgauto.com

They're used but they always ship out stuff in great shape.

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Chris Singh
1983 300D 200k+ (stopped odometer)
1990 300E 123k
1999 E430 12k

http://benz.mp3car.com
http://stormworks.max3d.com