By now many of us in Canada have already found out that McMaster Carr does not ship north of the border. There was some discussion in the forum earlier that identified a company called SDP/SI as a possible source but no part numbers were given.
I think that I have worked out the necessary part numbers for the two belts based on comparisons with the specs from the McMaster Carr belts. They are:
A 6R 3-C025 8 ft required
A 6R 3-185025 1 required
Disclaimer - I have not received the belts yet. I will not know for sure that I have the right part numbers until I actually assemble the machine. I take no responsibility if these are totally incorrect.
Web site for ordering is sdp-si.com