Here is a compact oven that lets you make authentic pizza outside. The Etna Wine Talavera Tile Pizza Oven has max temperature of 600F. Once it reaches a temperature of 350C, you are ready to bake a pizza in about 10 minutes. It ships with 4 clay pizza stones, short stand, rake, and everything you need to get started.
This outdoor pizza oven has a 13 x 4″ mouth. You can find out more about it here.