I am interested in buying a used launch monitor from someone in the USA on eBay. Given that I live in Canada, would I be charged sales tax when the item crosses the border into Canada? I have read that it's best to use US postal service and not UPS because UPS charges insanely high brokerage fees. Again, not sure if those charges would apply on used goods bought from private individuals as opposed to from a business. Any advice/info on this would be greatly appreciated. Thanks