I'm not sure about up in the Great White North, but the soundtrack (this is NOT our second album, eh?

) has been out of print in the US for many years. That's too bad because (for those who have never heard it) it includes a lot of in-studio bits not included in the movie.
My suggestion would be to see if it's available in Canada. If not, start checking places like eBay to see if you can find an old cassette or vinyl copy (I don't think it was ever put out on CD).
Until you can find a copy, you can listen to sound clips of the soundtrack (including the not-in-the-movie-stuff) at BobAndDoug.com (click on the second icon down on the left...that's an album, eh?...then scroll down below the "Great White North" cuts to see the soundtrack list).
www.bobanddoug.com/