Try Dieter Koehler (dieterkoehler1 ~ gmx.de the ~ is really the usual at symbol but can't use it in these answers! ) or look on German ebay ( He sells there so you can make contact via www.ebay.de by using the "ask seller a question" facility on something else he is selling) I got spares from him just sent the cash in euro notes and the parts came back the same week.
helpful comment, July 2010