Your current steam region must be Canada/US to receive the game.
The price difference is about 13%, so I hope gifting to the US would work. I just tested on a US friend, and the notification of price difference did not pop up.
If the winner happens to be in the US, and I cannot send the game to you, please allow me to delete the giveaway.

Are you interested in more North American region giveaways?
Check this group out!
I will send the game through the steam gift system. So the winner will need to accept my friend's request.