I did it!
It falls in line with my five rules for buying a car on EBay:
1) Must be a local car.
2) Must look good in a CarFax report.
3) Owner must submit to a brief inspection before completing the deal to verify VIN and that it matches the description. (Sub-Rule: Don't take the check with you on that visit.)
4) Seller must not have a feedback rating of ZERO. (Or less

)
5) Price must be right!
I had strongly considered the recent '87 in Syracuse for the same "Buy-it-Now" price that had a stated turbo problem. The way the bids worked on that one cleared out the "Buy-it-Now" price, and it subsequently sold for $3025. EBay #597749024
But of course the deal violated Rule #1.
In this current case the seller stated on his "ME" page "I make this simple offer. If the item is not as described or is not in excellent condition, you can return it for a refund. No delays. No hassle."
The mileage would probably scare off most people without diesel Mercedes insight. 300,000 miles is about half-life on these cars if maintained properly.
Took me about five minutes to get the CarFax run and press the button. Will let you all know how it turns out!
Ken300D
(Glad the name still applies!)