Burk now works for Adventurer RV in Yakima; and yes, they are from Canada (or Canajun). They manufacture truck camper shells. We had lunch with Burk and his lovely wife last August when we wandered through Yakima and afterwards he took us on a tour of the factory. They are in the original WRV site, so it was pretty nostalgic!
As you can see if you click on the link in Coyote's message, these are really nice units. We were quite surprised. They really use every inch of the small space quite well.