Congrats Ron......I know the feeling. I bought my '90 420 SEL a month ago for $7995 and according to my mechanic, I stole the thing at that price. All I've had to do to it is add a set of tires ( Dunlop SP Sport A2's ), set of GGBailey custom floormats and replaced the front wheel bearings.
All told, I'm in about $8800 for a car that cost $50K+ brand new !! And it doesn't look alot different than when it WAS new.
I'm sure you'll love yours as well, so best of luck with it.