I've been working on a new home made Gas Regeneration BBQ /Smoker
that I hope to eventually use to make pizza. It's like a mini wood fired oven. It's built out of huge hominy can and a 40-56 oz can of beans. It's the best BBQ and smoker I have ever owned and it was nearly free! I'm pretty sure I could get a small 12" stone for it and turn it into a pizza oven fairly easily. It works on a small pile of 1/4" twigs and 4 charcoal briquettes. Amazing heat from that beast. Throw some wood chips on top you have a smoker that makes the best meat you have ever had. I can see a Pizza oven too .......