Pizzarev's site clearly shows them using a Woodstone Firedeck oven.
According to Woodstone, it is made especially for pizza. There are no other options in this model line but gas.http://www.woodstone-corp.com/products_ovens_fd.htm
I seriously don't know what you're asking for in this series of posts. Do you want a cheap knock-off using the same idea as the Firedeck? A conveyer oven? Some gadget so simple a monkey could use it that dumps cheese?
You will get what you pay for. If you don't want to pay someone who has experience and skills, then you're stuck with making it so easy anyone could do it. That usually means mediocre product. If that's the case, I'm sure there are "packages" that the equipment manufacturers offer, including everything needed to get off the ground & training. You know, contract for frozen dough balls, conveyer oven, prep table, fridge, etc.