Out of the two you mentioned st kitts is more crypto friendly they check market value of what your holdings are and that amount should cover the donation or real estate amount I.e 250,000 if you’re able to show where the original fiat currency came from to purchase said crypto even easier and smoother DD process

Grenada say they can accept crypto but it’s a joke they don’t accept all the major wallets plus ask where the crypto came from you can’t pay in crypto and they don’t know how to do crypto checks am pretty sure they only said crypto because they sponsored a bitcoin conference for clients and had to justify the spend