I believe you can get some bolts from the Stealership for the front camber
For the rear cambers, try...
http://speedybenz.com
or
http://www.delsingmotorsport.com/mercedes.htm
Both are adjustable camber arms. When I lower my car, I will go this route.
suginami is right...if you lower your car, you'll have to get the "sport" shock. It was designed for lowered cars.