Bill & A210AMG,
Call it negativity if you like but there's a reason (or more likely several reasons) why this car is on ebay time after time after time & remains unsold.
In my experience exceptional, low mileage, loved cars find new homes very quickly, regardless of whether the price, car unseen, seems toppy. Right or wrong, there are buyers for whom low mileage is the Holy Grail & who will pay way over the odds for it.
I hold W124s in very high regard & believe they are very well made, designed & screwed together. Nearly as good as W201s in fact, if less nimble. W124s have a strong, loyal following & I personally know several people who own decent examples & who would like nothing better than to find a timewarp condition car for, as you say, Ka money. They're so fond of their old W124 they'd like another one just the same, in better condition, with lower miles, rust free & with more years of life to give. Witness the prices (usually perceived on this forum as astronomical) Charles Ironside & Cheshire Classic Benz regularly achieve for their low mileage, creampuff cars.
The fact that the seller confirmed to me by email that he had not changed the oil in 6 years & very shortly thereafter lied amended his ebay listing to claim otherwise is enough to put me off but as you say, you have nothing to lose by going along and taking a gander.
If anybody does view it I'd be very interested to hear their appraisal.