Buying a truck camper in Canada for use in the US

In 2000 I bought a Kodiak fiberglass truck camper from a dealer in Nova Scotia . they set up all the paper work for customs. but I did have to pay a tax that was refunded by the Canadian gov after I supplied mailedback several forms it was easy and no real hassles over the years I ve found most Canadian gov officials (exception being Quebec) to be much more helpful than ours.