Maybe I can contribute something as a new member (besides from just selling my stuff in the market place). A crazy dude with to much time on his hands did a compatible 3D-model of the old Marechal-plug for 3D-printing:
http://67183441.foren.mysnip.de/read.php?567,398564
He wrote it's not perfect yet, but at least the small slider can be used as a replacement part.
http://67183441.foren.mysnip.de/read.php?567,398564
He wrote it's not perfect yet, but at least the small slider can be used as a replacement part.