Now this was fun - a warm welcome, and actually being able to contribute. I thought this would only be useful to Claus with the Anker, but I can see possible wider implications. A word of caution: The parts look and act interchangeable to me, but this has not been verified by anyone "official" or really in the know. I don't want people to ruin their precious machines if there are small differences that cause harm over time. Please be careful.
Later today I'll try to post a photo or two of the Necchi and Anker systems, they're the only ones I have here. When I get back home I'll take a closer look at the other Europeans.
Stein