Better hurry. The dollar is historically strong against the pound (thanks, Brexit). Also, by 2050, London will have the climate that Barcelona has now (ouch), and Edinburgh will have the climate the London has now (yuck; see https://doi.org/10.1371/journal.pone.0217592 ). I'm hoping of spending my retirement in Thurso...
I'm thinking of just starting to eat more bacon and eggs and be done with it all before stuff like that can routinely be fried on a plate or a rock all over the planet.
But Thurso looks charming. How about Shetland... or is that going to be drowned by then.