This is good timing as I just returned last night from consulting for a pizzeria with a gas fired earthstone oven. It is possible to find a number of different gas ovens that can hit ultra high temps. Unfortunately it seems like many of the options have issues such as having to spin pies a LOT, massive gas bills, or not having enough top heat. I have set up shops with standard bakers pride gas ovens modified with high temperature thermostats, and that would be your cheapest route. If you want to pm me with your phone number we can talk in private about my thoughts on pluses and minuses as well as other options. Thanks!
