Almost
Getting the base should be no problem. Living in the US or Canada is a problem. If you do not have the right to live in either, you can still fly a U.S. or Canadian roster and commute to Europe (although I really got to wonder Why?).
You can only get U.S. basings on the freighter at the moment. Vancouver is not available until you have been in the company for aprox 4 years.
The pilot's licence does not enter into it as you will convert your licence to a Hong Kong one. That is what is required to fly a Hong Kong registered airplane.
Also Zepplin. You got no choice while you are on the freighter. Maybe once you are on the pax, but I seriously think that the base may be full in 4 years. There is a chance that it might not be, as there will be expansion and a change to 777s. However if it takes longer than 4 years to change the a/c operating into yvr than I predict it will be full by then.
Good Luck