Yeah Shan comes to mind here too, pricey though.
Do the hubs on these wheels offer any interchangeable standards like Hope, Superstar etc do?….only the Dartmoor Hornet is both 26 and 27.5 but has a 135 x 12mm rear end and is less than £200 brand new.
If you can pop the hub ends off to change them to 135mm you’ll have a far larger choice….in fact if you’ve inherited them and not had to spend anything i’d order some Tesla hubs from Superstar and get your LBS to rebuild the wheels with hubs that can then be changed to any rear end standard in a blink (150mm DH being the exception), that would still be a fairly cheap option and get my vote.