Get Oldi engine from USA – customs, taxes, tricks, tricks?

Hi all, I’ve been looking around a little bit but somehow only found very old threads on similar topics – therefore the question again if it’s not new. If I import a (rebuilt) engine for a vintage car from the USA, where are there currently customs and tax? Are there perhaps similar constructs as there were for vintage cars (or are there?), that one pays lower taxes for a few Dutch ports because old cars? Or are it just the usual 4.5 + 1 9 percent? Are there any other relevant tricks and tricks? Shipping I would do via one of the relevant logisticians, for tips I am always open. I am currently in a few thought games and the current object of desire is near Seattle. Thanks! M