Found this Hoffman enclosure for $150. I've looked at all the data for this model on the Hoffman website and from what I gather, this beast, besides costing $2969.00 retail, is stainless under the paint. It's air and water tight and the walls and door have a recess of about a inch and half. As it is now, it's internal dimensions are 86.61x39.37x19.69in I'm thinking of cutting it down to a manageable 5ft and lining the door and wall recesses with insulation and then lining the whole inside with another layer of sheet metal. If I keep it as it is, I would like to build a frame for it an lay it down horizontally, split the door down in half and add long racks. I can't make my mind up. I also need advice on where the fire box should go? Any ideas will be much appreciated.