After considerable research, I have determined that the '94 850 BMW with 6 speed is the only way to go if you NEED a V12 car! I have had such good luck with my W126 that I bought with 225k miles on it two years ago, that I mistakenly thought the MB V12 would be a great car to own. Already bought the service manual for it for my son who also is looking for one also. My W126 will eventually be my backup car. Don't ever drive a '98 750iL! You'll never get back in your car again.
Woody