Simon
Sorry to hear you are selling up, and was shocked to return from holiday and find Will had sold his one *eek* As you say these cars are brilliant but they are a bit of a niche market, probably due to people not knowing that much about them. There are as you say only a handful genuine ones out there and this makes some people nervous, especially when it comes to back up from Caterham, however I have had no issues getting any parts for my car as they are all available new from Caterham, Nova and your local bike breakers.
I do hope your car stays in the UK but based on recent sales I would not be surprised if it went overseas
Good luck with the sale and please pass my details on to the new owner so he can be added to the register.
Nick
Lava Orange Caterham Blackbird