This is a nice 1972 220D on sale in San Francisco Craigslist for $2900. I think the price is very reasonable for a rustfree, good body, 4-speed manual car. I like the light green interior which is uncommon. The seller did not mention the miles, but the odometer shows 81092 (once over??).

http://www.craigslist.org/sfc/car/117018843.html