Hello Dee, welcome to the parallel universe of chin parenthood: chins are extraordinary creatures; not terribly cuddly but perfectly capable of filling the hole left by a cat or even a dog. Scotland is a good place for chins: the only thing one has to watch out for is excessive humidity, which, being creatures of the Andean altiplano, they do not like a bit. Fortunately in Scotland we all have dehumidifiers, so that woudl not be a problem.
I know it could be a bit daunting as a first, but did you think of rescuing one? I cut my teeth with a rescue chin from the SSPCA who was unsocialised and with a temper to match but with patience he became a marvelous companion. So much so that while people were rushing to buy dogs, I spent the entire lockdown with only him for company.
Perhaps Edinburgh is too far away for you but there is an adorable white female for adoption in the
Edinburgh collective rescue.; I woudl have adopted her without hesitation but have a boy, so had to resist the temptation. There is also a members only
rehoming group in Facebook where one can get more information about the chin that one gets normally from the SSPCA, so that may be a good place to start. A breeder in Aberdeen, used to rehome chins but I am not sure if they still do. Vets. as you so rightly said, can be an issue but in my experience, the label 'exotics' attached to a veterinary practice does not mean much and a good vet should be able to deal with an emergency. Plus you have taken the right first step: get into a forum where, as Jessica (
Minatoandchili) pointed out, there are very knowledgeable members, so you know that you are not on your own.
Since you live in the UK, there is a very useful
YouTube channel with information about chin's behaviour. The owner breeds chins so she knows quite about their often puzzling antics. You have started an exciting journey; only thing to remember is that once you get chins you no longer can live without them.
(I have linked the EDI collective , Facebook group and the YouTube channel; there is no obvious change in colour but the link will show if you point the cursor)