Yeah I guess I'll take a bottle, hope it works as advertised....
I made a list of parts that the cab needs and the status of it in the first posting. If anyone can help with the parts, please let me know.
A little update:
I received an original Joystick from the US (thanks to Peter on the KLOV forum, incl. it's harness.
So funny: I never paid any attention to the Q*bert stick until I saw Bruno's lovely cab at Eurocade. I thought it looked exactly like a mini version of the Suzo sticks.
So...when I receive it I looked under it, and sure enough it said :STC ROTTERDAM" (STC meant Suzo Trading Company).
Funny to know this has been produced around the corner about 30 years ago and is now "back" home

It also explains why it's such a great stick

See the list in the first posting for further updates...