I saw something like this on this forum in pics and decided to build my own. I built it using 316 stainless steel rod. Tig welded the hoop ends together, as well as the legs to the hoop, and then spot passivated the welds. I ended up making the legs 4 inches to get me up to my gasket, or almost down (1/2 inch shy) to the top of my fire box. So far so good, I have used to do spare ribs and chicken and broccoli stir fry. Here are some pics.