A couple of people in our Kamloops Gun Dog club have kennels from Nikanda... appears they are located in Calgary. I too like the Gunners but this seems to be a nice option and I like the idea of being able to customize the size exactly to your needs.
https://www.nikanda.net/
I also like the idea of having a cut out done in the back to mount this fan...
https://rufflandkennels.com/product/turtle-plate-fan-7/
They have lots of pictures on Facebook. I was going to put in an order for one the next time I’m headed through Calgary.