I dont know how large and heavy the jacket is, but $500 for shipping just doesnt seem right. Who quoted you this cost and did they give you a detailed breakdown of costs? I
assume it is a used jacket so its not like Canada will charge you taxes and duty, or...??? Have you considered using the regular postal service...?
If you care to PM me details of the jacket, I can try to put you in contact with a specialist logistics forwarder that I work with, he has very good courier rates. I dont know the specifics and cannot guarantee that this Company will be able (or willing) to offer a solution, but I can ask. If you think this is worth giving a shot, email or PM me and I will see what I can do.
Cheers,
Alex / Gaucho100K