But you don't have to fix all that at once. Start with the shocks and springs or whatever the most likely problem is. As long as its safe it doesn't have to be perfect. Soundl like you have a lot of good components still . Suspension stuff can be a pain but its cheaper than a lot of things and once you do it you're good for a 150,000 miles. I bet 500.00 in parts or less , you do labor, will fix you right up.

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What Would Rudolph Do?
1975 300D, 1975 240D, 1985 300SD, 1997 300D, 2005 E320 , 2006 Toyota Prius