Just got this finished up today, thought I'd share some pics, its lined with 2" styrofoam, with a strip of 17" flexwatt down the back, and a fan screwed to the top. It's controlled by a helix, with the probe right in the middle. Top stays around 89.9, middle around 89.2, and bottom at 88.7. Foam weather stripping around the doors, and over all styrofoam seams inside. (helix shows 83 because I had just opened it to film a youtube video)