Assuming 10 servings per pan, and you need 100 to 120 servings, you are looking at having to cook that many loaves. Doable if you have a large amount of oven space. It's a lot of work. I will say though, I have cooked in service pans that were 3" deep, worked fine.
the meat thermometer was so far past the top reading, it read Taylor
"perhaps...but then again...maybe not..."