Bill, I can't belive I'm saying this, but you should look for a 94 or 95 S350. I hear the later models are good engines. Someone at our NJ diesel meet had a 95 S350 with 310K, this thing looked brand new. A connecting rod bent at 280K, and he had that rod replaced, and it still is running great.

The W140 are beautiful cars, but expensive to maintain, make sure you check the evaporator situation too.

What business are you in?