This should get the bushings replaced -

http://www.peachparts.com/shopforum/diesel-discussion/301701-home-made-$15-w124-lca-bushing-tool.html

There are Klann clone spring compressors for $100. Return shipping a kit is almost that.

If you’re only doing the carrier bushings, you don’t need a spring compressor. I would think you don’t need a spring compressor at all for the rear of a wagon with SLS.

Sixto
98 E320s sedan and wagon
02 C320 wagon