NW Ontario eh, I'm guessing that your wood choices are about the same as mine here in the UP of MIchigan, maples, white ash, elm, serviceberry,
apple, red oak, also look for imported species lots of folks plant exotics and many of them make a good bow. As Josh said 3 Rivers selld B-50 dacron
2 spolls will cost ya about $20 not sure on the shipping to Canada though.