I would just like to point out that the Swedish Armed Forces does not use Combat Shirts, we only use the regular smock/jackets.
Its most likely difficult to find a good retailer that ships over to Canada, but I would recommend a couple of companies that might do so here.
Here are links to their websites, contact them and check:
www.rodastrarnan.com
www.garderoben.se
www.surplus.se
I will just like to point out that I am not sure if they ship overseas, but I'm pretty sure at least the first company can work something out. Otherwise a middle man can most likely be arranged.