The one you've linked to has a gasoline engine, not diesel.

On www.ebay-kleinanzeigen.de, you can do this pretty well without any search terms. Just select the category "Autos", then refine to show only Mercedes-Benz, only Kombi, only diesel, only manual transmission, only certain range of build year, etc.

Drool over some of the cool cars that never came to the U.S.