So far I found nothing, they all start at $200 with the twin size point blanket and I think Whitney's are the same as HBC (Hudson's Bay). It seems you either have to buy fancy collectible blankets or old smelly army surplus, there's no in-between.

I think I'll go hunting for a while and come back to The Bays department stores in downtown Montréal and throw on the counter a couple of beaver pelts and tell them, hey, I want a four point blanket. I can imagine the salesperson telling me, hey take your pelts elsewhere son. You're killin' me here. You're holding a spear on me.

Seriously, I'm thinking ebay.ca could be a potential source. There's also maybe Woolrich, they sell Civil War blankets that are 85% wool and 15% nylon. I'keep on shopping.