I think I wouldn't recommend reinstalling the self-levelling suspension. I have an 89 300te with the hydraulic self leveling system and the car doesn't handle well, even though the SLS was perfectly adjusted. I recently replaced the front struts with Bilsteins and replaced the tie rods and tires, and most importantly, I had the dealer perform an alignment. Nothing worse than taking the car to multiple tire/alignment shops and not getting the job done properly. Suspensions are complex to adjust, and anybody who claims to be able to perform a good alignment on any type of car for $99 is full of BS. A good indy with an alignment rack would have been better, but I'm not aware of any in my location. Now it handles considerably better, but still nothing like my 300E sedan. I occasionally think about removing the entire SLS, but I use my wagon to tow a small ski boat, and load it up all the time with tons of stuff, at which point it's nice to see the rearend level-up. Overall though, I think some decent coil-over shocks would be good enough and a lot less hassle. There's no such thing as just replacing the back shocks. THere's nitrogen canisters and the hydraulic cylinders, everything adding up to $$$ to replace.

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89 300te 222,222
92 300e 190,000