goodluck, if you find one in the US let me know too!
Question: I wonder if you are located in the UK or America? Its pretty challenging to drive a RHD over here, so I suggest you forget bringing one back from England. OTOH, there are lots of manual trans diesels in Germany.
Check eBay, use the advanced search feature, open the Items Located in... Worldwide box. Select Germany.
How about a 300TD Kombi diesel wagon w/ stick shift? I didn't know there was a 24 Valve diesel engine:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2466018692&category=18220
DDH