I'm Canadian. Vancouver is a expensive area. Maybe try Kijiji.ca for board listings by people who own private barns in their backyard. I've seen postings in my area for private barns.
I highly doubt you will manage to find a stable for cheap without boarding in someone's backyard or driving hours.
I don't care for a place in someones backyard to start with or to work off a part of the boarding costs. Since we are immigrating, we have a lot of expenses. I am trying to calculate our monthly cost of living in Vancouver/Vancouver area.
I am still not sure if I can bring my own horse from The Netherlands to Canada. But I spent 3 years of training her and it is just about time to bring her under the saddle. And I'd love to keep her. If possible.