That looks great!
I worked on mine today, shaving down the back of the backing that comes with it so more cool could come through...and then you show me this! That backing is a great idea...and I'm probably going to steal it from you
Kev,
The best pricing I found was Pet Solutions, although the shipping would have been a lot. Then, I found them sitting on a shelf at Petco, although they are not listed on their web site. I got the smaller one, 12 x 12 x 12.
They're great with the doors opening in front so you don't have to work in it from above.