I think you just need a little bit of patience, Pete. Your car is extraordinary. In Germany, the three original factory dealerships don't sell used 4/4. They don't have at least one. This one in the link below, from an independent dealer, I found on mobile.de. It is also a 80 anniversary which is significantly more expensive than the normal 4/4. Ok, these are receivables and not real sales. But I would wait in your place and not offer it cheaper.
https://suchen.mobile.de/fahrzeuge/...hId=abd751ea-078c-12b5-47a1-59320c8725e5It is different with Morgan. My dealer was able to sell my lush green Roadster 3.0 series 2 11 years ago to Spain in 12 hours for a very good price. I couldn't sell my series 3 roadster sport in Teal for almost two years although it was a great car in 2014. My Plus4 Supersport I could only sell after 1,5 years in 2013 because people were afraid that it has no OBD2 plug. Today the new owner drives it only on the racetrack.
What I want to say is that your car is extraordinary and very desirable. The new CX Morgan has absolutely nothing to do with it, because we would be talking about a different target group and double the amount of money. Perhaps you or your dealer will also place your 4/4 on mobile.de. There are enough people in Europe (people look at mobile.de in whole Europe) who like to buy a right-hand drive car. And there your price of 39K GBP would be very attractive.
In general, it is in Germany at the moment so that the classic market has become slightly better in the last 6 weeks. I wanted to sell my 1973 911T Targa, but the price was too bad. Now I have found a dealer who wants to pay 16.000€ more than I would have gotten four months ago.
