Hello Perry,
Yes these coupes and cabs are quite timeless classics! You'll need tons of cash to buy a nice cab, but you can find a good used coupe for a bargain. The V8 versions are the hardest to come by and demand a premium. These cars have massive amounts of wood, chrome, and leather. And with all limited production Mercedes, parts are exceptionally high in cost. Find a nice example because restoring one of these is very expensive because of those reasons. Much of the mechanicals are the same or similar to the W113 cars (except the V8s engines).We have a local MBCA club memeber who has an excellent mostly original W112 300SE coupe. His advanced age is requiring his sale of this prize possesion. If anyone is looking, and you do not mind air suspension, it is a very nice one and next to show quality.
It has the alloy engine, AC, automatic trans, but no sunroof.