These seem fairly popular with homebrewers and come up now and again on the site when people are looking for big pots - might be a good addition to the ebay links page?
German portal:
[url:20gs7xoy]http://shop.ebay.de/catering-portal/m.html[/url:20gs7xoy]
French portal:
[url:20gs7xoy]http://shop.ebay.fr/catering-service-fr/m.html[/url:20gs7xoy]