Decision-making aid W126 Coupe (C126)

Would you like to drive one of these? And that would be near me:http://suchen.mobile.de/…/showDetails.html?… Unfortunately I have no idea of the W126 or C126 My questions: 1. Is the condition original? So if it should come to this H license plate capable? Can the gas system stay? 2. What is the equipment? Wide range series or extras? 3. What do I have to pay attention to? What are the weak points (car body/technics)? Don’t want to write too many questions. if, I ask again. mfg Michael