i'm currently working on another 'the canadian' ..... i use kato zephyr sets. remove the lettering, paint the blue stripe and reletter the car. oh, underbody and trucks will be sandblasted and painted black.
if you're interested in buying one set the send me an email to orders(at)sschaer.org
It is the closest in N scale of VIA Rail budd cars.
And with the electrical pick-ups from the wheels, you can also get awesome interior lighting !
I will post the HOW TO light your interior with some thing different then the original Kato system. Much more lights as ALL the lenght of the car will be lighted for about 2$ a car... which is also the same amount of money for the Kato system!