If you havent seen it here is a link to a detailed build using a purchased tandoor liner
http://www.piers.thomson.users.btope...com/index.html. I actually made my own tandoor inner chamber from earthware clay, then fired in my kiln. I havent installed it yet, mostly because Im not that excited anymore about the cooking process with this style oven. But receintly I had an apithany (I know misspelled) and realized I could use this liner not only as a tandoor, but also with a little modification could make it work with a wok on top of the opening, and with a thick plate of stainless it could heat a hibachi. Now I just have to wait for a thaw so I can get digging.(-11deg. windchill BRRRRRRRRRRRRRRRRRRRRRRRRRRR)