The 2 big things that will "work against you" are that it is a CDN box. Vintage collectors tend to be sticklers for US packaging, especially in a line where Hasbro made the effort to change stickers based on market (CDN vs. US).
There's a pretty hardcore group of people that want U.S. and Canadian items in their collections. Some people want one of each because they like the international flavour of having a unique item from outside of Canada, while others are just completists.
So while you say it would get 10% less, I've sold more than enough Canadian versions of items that have sold for 50-100% MORE than U.S. ones - because they're sealed, Canadian, and hard to find in the first place. ;-)