There is a few places where you can get Lian-Li in Canada first is
Canada Computers best bet is call and let them know what you are looking for. They rarely show any stock online but if you get a helpful employee they can let you know if any stock in on the way. It's hit and miss but possible. They only carry a few units at a time so you have to keep tabs on it!
Another good option is
Extreme PC out of Guelph, Ontario they are always getting new stock in just give them a quick call they will even hold one for you since they sell out quite fast. Again the online stock counter is always off so call! Not the cheapest prices but decent over all.
Also
Newegg.ca carries quite a few.
So you do have options you just might have to be patient. That's what I did and I have my PC-A70 sitting here back from being powder coated!
Good luck