Thanks, guys, for replying. They want $8k. No lower will they go. The only blemishes in the interior were the slightly faded rub marks on the corner edges of the front seats on the door sides. Not too big, and probably fixable. Also, the driver's side door had a hole in it right on the top where you would rest your arm. They had black tape across it. Again, possibly fixable with a vinyl patch kit(?). Other than that, everything else worked.

True, the high NADA value for this car is $6,950, but as you can see on Ebay, they -are- selling for $8k, obviously condition dependent. Judging from the way it drove and shifts smoothly, I -guess- it's worth around the $8k mark. I searched for info on the 86 300SDL before and didn't find anything other than the heads going from overheating. Are there any other things to look for?