Dallas Can Academy runs auctions in Dallas and Fort Worth on Saturdays. The Dallas Auction starts at 9:00 in the morning and the Fort Worth auction starts around 12:30. You can read the auction rules and see the complete list of cars at:

http://www.texascarsforkids.org

Preview was this afternoon and the Dallas auction includes the following:
1974 240 D (medium dark blue)
1973 280 SE in a cute powder blue
1986 Silver 4D (didn't get the numerical designation)
1976 Red 4door (again, no numbers) [I'm not certain it IS a '76, it looks 10 years younger, at least.]

The Fort Worth auction has an MB in it's list of 50 cars.

There's no telling what shape the cars are in (the bodies and paint are okay), but at the auction, they'll start the cars (if they can be started) and "drive" them forward and backward a foot or so, just to show the trans works somewhat.

Anyone in this area who's interested can call me at 972-717-4615 with any questions.