why don't you order from Iron Eagle Tactical? They ship to Canada. I got my kit from them, here in 10 days, no customs either.
if you do - note that the handgrip gap filler insert comes with the Nordic set (I ordered an extra one by mistake)
And if you throw in a few farkles like extended mag release etc, it will bump your order into the free shipping category. Totally recommend them.
edit - I think we are doing the same math. Cheaper to build a "SR-22" using regular 10/22+Nordic+spare parts like stocks & grips than buying a SR-22 new.