1) Upgrade to 124 leather seats (different design) or even sportline/500E seats.
2)Rebuild the suspension. Or get under it and find out what part is worn out. Try the search function.
3)Put Euros on her. Much improved visibility. H4s in the euros if they are not enough on there own. I also have additional Hellas installed.
4)Get someone to look at the jack hole asap. I suck at body work.
All very expensive options. The Euros aren't too bad if you pick up some knock-offs on eBay, which would work. Cheapest thing to do is live w/ it, as always.
-Matt-