I am very aware of the pitfalls having a Brother living in Canada. If I send anything to him I have to be mindful of the taxes etc. Canada has a system whereby they have a 'national' tax PLUS a Province tax.
A couple of years back, I sent him my old police flowerpot helmet as he has several RCMP customers and it certainly was a talking point fortunately Canada customs didn't charge tax although it was over the gift limit, but it still cost £12 to send it. Last Christmas I sent him a book which cost £10 to send, so the post is a killer as it's done on weight.
I just find it amazing that a part in the USA costs half what it does in the UK, bearing in mind the offer was $25 postage included, begging the question that the price included local tax. Carriage apart.
After today, Honda parts will cost even more as the money men are not happy with the election result.