If possible... Come back threw quebec... You save enough on taxes at the border to cover the cost of your trip and cover the vehicle transfer fee on your trailer...
Also get the bill of sale separate for the boat... Motor... And trailer and get the seller to put most of the cost on the motor.... This will also save you tax money...
Me and my dad have both bought boats in the us it's so easy I can't believe more people dont do it
Also method of payment usually has to be cash unless you wanna stay for 48 hours for the bank to clear an "international check"... Bull right... But if it's less than $10,000 you don't have to declare the cash.... If its over that you have to fill out a form... No biggy