EBAY and some other retailers will but you have to call them(cabelas, basspro, gander mountain, etcwill not!!).Iknow many who buy state side and some who even don't pay any duty or taxes on new items.

Of course if you were willing to pay 950 canadian you can always just call up SIR and pay 870 instead for 3.5x10x44. Just happen to have both catalogueson my desk...! Though your conversion was way off 589= approx 670cdn.