Hi Josef.
Wow, never heard from this game. Could you post some pictures, please? Is there any artwork left on your cab? Is it working?
According to the
flyers there are two versions, an upright an some sort of environmental to sit inside. Which one do you have? They seem to be pretty rare so I'm afraid there won't be too many cabs out there. Best chance might be to ask at the KLOV-forum in USA and in UK at UKVAC-forum.
Good luck!

Luigi