Where in the NE are you?
Is that NE as in Nebraska or North East as in New England?
In addition to the suspension stuff suggest replacing all fluids, engine, trans and diff. Change fuel, oil and air filters. Look at the oil when it comes out of each hole and compare it with what you see going in. You'll get the picture. New coolant is cheap so flush and fill the system. Summer's coming, and '02's need all the cooling capacity they can get.
The 4 speed and the diff are trouble-free unless they dont have oil and if you dont know when last they were changed just change them.
Make sure your fluids and filter are as per BMW spec - check the board here for recommendations like Redline, Blue-whatever, etc. I stick to Mobil-1 and thats good enough. Almost any brand name is OK so long as you change it annually.
Check the tires and the brakes carefully. No matter how fast it goes you need to stop so this is super important.
Sounds tell you a lot so listen carefully. If you hear thumps, groans, whines, etc the car is telling you something.