This is silly. The primary mission is the CF's needs not the PM's occasional needs. Yes a nice white aircraft with Canadian insignia would be nice but why does it need to be an Airbus.
Why not something like a Bombardier Global 8000, it has the range 7900 nautical miles, speed .85 mach and will use 6000 feet runways. It does transport 8 passengers with an office and stateroom. We could purchase 3, 1 for the PM, 1 for the GG, and 1 for backup. When the PM needs more seats for staff and reporters, let them lease a plane from Air Canada.