Wife and I have been trying to decide on a oven project. Think we have decided on a mobile oven on a trailer. We would like to cast it ourselves. We want one to cook pizzas in, one that will cool quicker for transport, and light enough for a small trailer with a weight limit of 1750 lbs. I am a pretty handy person who enjoys DIY projects. I was thinking a 30" oven, with 2" walls with stainless needles. 2" cast cooking surface on 2" of the ceramic fiber board. Covering the oven with 4" of ceramic blanket. Does this sound like it would work, to achieve what we are looking for? Your advice is greatly appreciated.