1.Why is crypto not an option when you know anytime you could lose access to the money?
2.Why not work with a third party for buying the gold if you have issues buying it yourself?
The only problem I know of is that portugal will fully tax income coming from known blacklisted tax havens like Seychelles-hence a no go for me. Can others confirm it -I had looked this info up somewhere i forget where.
OP why dont you just buy Consulting services for a small percentage from some zero tax company like in Seychelles and then take back the money in Crypto.