I don't have any more pics of the chamber/stand. I did use 2x4 to frame and then 3/8 inch (or something close) plywood on the inside. I caulked every joint on the inside. I built everything but the top and then lined with 2 layers of 3/4 inch insulation. I staggered my joints with the insulation and used a little spray foam to fill in any gaps. I used an adhesive spray to get the insulation to stick on the plywood. I put my "ebay temp controller" in and directly wire a fan to the controller to always move air around. I put the top 2 layers of insulation board on and sprayfoamed the top against the playwood, then I put the top of the stand on. I foiled taped all the joints on the inside. I have the door opening staggered and used weather stripping to seal the door. I got in there and closed the door and found no signs of light, so I think its pretty air tight. There is probably about a 3 inch gap between the top of the insulation and the top of the stand. I actually have my controller power cable, the compressor power cable, and the ebay controller power cable routed in there and have everything coming out the top middle of my stand. I don't have the dimensions on me (I'm at work), but I wanted to be able to fit a sanke keg inside (initially wanted to get the sanke fermenter kit). Theres not much more room width wise, but I can get one in there. I think I went with about 5 feet length, to fit 3 kegs on top. Height was also to fit a sanke keg. Its pretty tall once the castors were on and the top of the stand, so I plan to make some kind of running board/stool to be able to peak into my keggles. I don't plan on heating, but it's been pretty cold (38 degrees) the last few days...I haven't fermented in it yet, but I should have a 6 gallon carboy with my pilot batch in it by Saturday.