Roman,
Unfortunately, all the stuff you see from up above probably doesnt come close to what you see by putting it up on a lift (rust/previous repairs/leaks, etc).
It took me seven cars to find one that I felt was "right".
BTW - NADA actually shows values on these cars on their website (updated each month).
Best of Luck
Boca Raton, FL
1967 230 SL Automatic
670 Light Ivory
113 Bronze/Brown MB Tex