Great to hear from you, Mark!
I am happy to help out with any displays if things are needed, if a whole display from me isn't required. (I can't think what I could do)
The Safari is an option, but after examining a large Schleich safari diorama, I realised my Kirkbean display needed lots of varied, undulating terrain, which is why mine looked a little odd, and more like a zoo car park where the animals had escaped!
So that probably wouldn't be an option as the board could not be pre maid by myself, and trying to do it when I get there would be taking the emphasis away from the Playmobil, spending the evenings creating terrain, if you understand me.
Here's my idea for a display (please say if it's stupid - it's just an idea!)
One table size, with plain white top and backdrop
and then in small groups, some of the very first Playmobil/Playpeople sets: Knights, Builders and their truck, Indians etc, and to pad out perhaps move on to the early firemen etc.
It's probably not something you are interested in, but it would fill a gap if you got despirate.
Damo