I did not start out intending to building something quite this big, but I figured out that I could do this for not much more than what my original idea would have cost. I got this steel building kit second hand from a guy in the next county.Then I laid down a big concrete pad. Right now I have a sheet metal fabrication company building me a nice system of exhaust ducts. I had them all run through a heavily insulated false wall which creates a utility closet about 30 inches wide down the back wall of the building. All of the electrical and plumbing of the building runs through there.