Hi there, Maple Lane Equestrian Trailers in Smithfalls, Ontario sells them. They are just outside of Ottawa. I went to their website and the representative sent me a really informative package with a DVD. The Bockmans are a bit less expensive than the Brenderups, but not by much.
If you are looking to get into an entry level Bockman, 2 horse, your not going to pay under $10,000. I have also looked into trying to get a second hand one, but I have never seen one, with the exception of the states.
Here is the link for more information: http://www.brenderupincanada.com/