In love with an SL500

[MBDIVA]

I drove a 1992 SL500 yesterday for the first time. WOW!
Car is for sale!! 82,000 miles. No dings or dents but a few scratches.
Has Both tops and the ydraulics work well.
Interior is clean. Tires have plenty of tread left.
CD changer in trunk. Radio and CD work well.
Owner is asking $12,000.
I'd like to make her an offer but I can't seem to get a sense of where I should be on it.
Any thoughts would be greatly appreciated.

MBDIVA
'01 S430