I'm not sure if anybody locally carries the Jobo chemicals. I can think of only one place that sells Jobo equipment and they only have Kodak chemicals. The other thing is Kodak is in town. It's not too hard gettiing a dealer to order something from Kodak Canada.
The 1gallon bleach is something like $39Canandian per gallon of bleach. Considering Kodak mentions 130 sheets of 4x5 per gallon chemical cost really isn't an issue.