Sadly, if you were in the States, there are plenty of retailers who have the grip shift versions and do free shipping. I just checked the ebay store where I got my grip shift versions from and it's free shipping in the US, but $15 shipping to Canada.
Although, now that I just did the math, it would still be a tad cheaper if did you pay that shipping. $28 grips + $15 shipping = $43...I saw an etailer in Canada where they had them for $49.