I built my stainless tank. 7" X 7" X 32" long. It took one piece of 12 ga. stainless 22" X 32" with four 90 degree bends. There are two 1/2" outward bends to stiffen the sides at the top. Then there are two 7" X 7" end pieces MIG welded on, with a stainless handle at each end. Another piece of stainless about 8" X 33" makes a lid so the water heats faster. It's a pretty simple thing to build, but I had a friend with a shear and brake and a MIG set up to weld stainless. You might want to check a few local fab shops and price having one built before forking out $175.00.
