Hmm, interesting original question. The "4-Star Classics" car is £35K and sounds nice but non standard which will put off some people. They just sold another (Chamonix ?) that was listed up at £45K from memory. The Munich Legends Fjord CSL is £40K but needs paint and other bits and bobs to get it top notch. There was one on pistonheads about 6 weeks ago that was also around £45K. So with a bit of artistic generalisation, the dealers are looking for around the £40K mark (give or take £5K) for what I'd call "nice" cars but not perfect. Bookend that with the £20K I paid for my Verona CSL earlier this year, straight and historied but she hasn't run for a while and needs some work and at other end of scale Nuttley listed a low mileage minter at £60K which has now sold.
It's true that Uk were relatively blessed with 500 RHD models but
www.howmanyleft.co.uk list only 41 taxed and 26 off road SORN-ed, which ain't a lot ! I'm sure others survive but the climate here did them no favours in '70s, '80s and '90s !