Well last year, my parents bought a 40x30x 16 extension for the steel frame building we already had. But as they were told and ignored, the ground water table is too high on the side they wanted to add on too, footers sank. So we can’t put it up. Been trying to sell it, but it’d cost an extra 10 grand to get an extra truss and wall to make it able to be free standing. But it’s got a 5-12 pitch, eaves are 16 ft, so one could make a 2400 square ft, 2 story house for under 30k not counting the inside. I figured another 10-15k for the inside. But wife doesn’t wanna live in a pole barn looking think.