You could try posing a wanted in these Facebook groupsHi, and thanks, the King Pin would be looking to purchase one before May this year if possible, in decent working order, i see other Gottliebs out there for sale, but i haven't seen any King Pin's.
If you do change your mind on selling, or if you know someone who could be persuaded i would be very grateful to discuss.
If you could point me in the direction of others places to look for sellers, that would be great.
@Stags6969 yea, we aren't too far away from each other!
The second is mainly US based but there are UK members too
I'll have a Jumping Jack for sale soon - has a very similar layout to King Pin but is a two player.
If you'd be interested send me a private message and I can send you pics - but there is somebody else who has first buying option when its done