Heh, that is the same my situation years ago. I thought about the UK also as you, happy to stay 6 months). But you cannot stay in the UK with Caribbean passport for 6 months as described, even for few months, I went through this way, in one day you will ban to come to the UK, the border officer very well-known about that. UK has heavy taxes on crypto, there is a special huge part of gov.uk for crypto taxes). Nominees or some simple moves with offshore doesn't work in 2020. Only works like be a High-net person having residency in country with 0 tax on world income.
Now, I see my little mistake, instead of multicitizenship I should have been to obtain for Malta or Cyprus. But anyway, of course, I'm happy what I have now.
Now, I see my little mistake, instead of multicitizenship I should have been to obtain for Malta or Cyprus. But anyway, of course, I'm happy what I have now.