I purchased an Okanagan 811SL new in 2006 and had it for 3 years before I went to the "dark side" when I retired and bought a 5th wheel. We absolutely loved the Okanagan and never had one complaint about it so I'm sure you will enjoy it.
We are now at the stage where the 5th wheel is too big for us to drag around so we are going back to a camper. Okanagans are no longer made so I am looking at Westland/Travelaire which I believe are made by the same people who made Okanagan in Penticton, BC.
I will ask at my local dealer who supplied my Okanagan and see if they still have any information, if so I will get it for you.