what would a 1979 2 door 280 mercedes benz in pristine condition cost
Try classiccartrader.com site at what the other ones are selling for.
It all depends on condition and mileage. to which market are you selling? U.S ? Europe?
Search Mercedes-Benz 280 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Mercedes-Benz 280 Experts