I guess a lot of people try and dodge but tbh I would want to do everything whiter than white, I just don't like looking over my shoulder.
I'm the same - I wouldn't fancy coming up with a long-term way of life that depends on constantly looking over your shoulder. I know there are plenty of people who do this, but it wouldn't be for me.
I am sure there are people bringing in precious metals & cars to convert to cash.
You're only allowed one tax-free car import, I believe, and it has to be arranged within a certain time-period of your taking up residence.
I've certainly heard of people bringing diamonds in their pockets. (Also with the country comprising islands with a lot of little ports, tourism, boating and fishing activities, and so on, I think it's probably pretty difficult for the authorities to know exactly what comes in and goes out of the country. But very significant incongruities between apparent income and apparent lifestyle are probably going to alert tax authorities anywhere, these days, with all the understandable international sensitivity to immigration, money-laundering, and so on?)