Sorry, no definitive answer, but some suggestions:
You could try eBay:
You could also try a small appliance or vacuum repair shop. Often they have a variety of belts in stock. You might have to bring your broken belt in.
You could try measuring the length, width, # of teeth and searching for a similar belt online instead of using the model number. Adjust your measurements to common widths, etc. Like you might measure 1", but find that .095 is the true googleable size.
You could try researching that saw and seeing if it's identical to another model from a different manufacturer. Often manufacturers sell these as white label products that get sold under different well-known brands.
And I've never tried it, but
reship.ca gives you a US address that will reship stuff to Canada.
Busy Bee just had a switch for my belt/disc sander. I found it by searching paddle switches, but there was no link between the model number/brand and the Busy Bee database. It was just dumb luck and a lot of manual searching. :( I don't think they carry toothed belts, though.
Good luck!
Shawn