It's not geographic Nick - you're probably closer to France and to Africa than most Z owners in the UK........
I love life, I love most Z people but above all, I love the cars. I try to follow the trends, set one or two......and to boost the Z image.
The nicest Z over here will be the GRPIV racer which is designed especially to compete against any and all Porsches in the classic endurance races. A useful spin-off would be a demand for more Z racers built (snow-ball effect) although I'm confident that we'd remain relatively exclusive and exotic compared to other makes in competition !!!
There are other historic rallye and circuit Zs under construction.
For the GrpIV (Europes' only FIA racer ?), the engine, gearbox and limmies are being collected from Stroud next week and the car currently has 16 wheels to cover the front, rear and dry and wet weather. The Count helped source some parts and information and I seriously believe that if people and clubs work together, the Z scene can only explode !
Big Sam would easily be accepted for Le Mans Classic but it remains expensive for the track time allotted albeit it flat out on THE circuit ! A better series are those races in VER or v der v where one can share the drive of 3 - 6 hours for less registration money. After that, the other costs are probably similar.
But I digress, good luck with the sale and I hope that the new owner believes that his value will be enhanced by returing to competition.
Nick - should you want another Z for fun and/or competition, it will be possible in the near future with more clean cars being imported and more availability of performance parts specific S30. You'd be joining an illustrious group of returning owners but you probably know what I mean already - hush, hush.