Summary:
MANY hours of research.
The wonderful thing: a late 1990ies SAAB 2000 Hatch cylinder will match. Match? Not real, it needs a 12mm screw to the hose.
The MOG has a 10mm. So there I need a special made hose.
The SAAB idea: a benefit of about 50,- EUR.
Rene,
An excellent piece of research, for UK owners a 12mm to 10mm adaptor is readily available, at an inexpensive price, from Car Builders Solutions