Trevor, making pizza in an oven made to bake pie? Whoah

And you took over this job willingly?

Pie is going to require
much lower temps than pizza, at least, good, NY style pizza, so, I have to be honest, I'm not feeling terribly optimistic here. If there's a chance this oven can produce a great NY pie, we should be able to help you do it, but in order to help, we're going to need every scrap of information you can give us about the oven.
Brand
Model #
Output (BTUs)
Peak Operating Temp
Dimensions
Hearth surface
Hearth thickness
Exterior photos (especially close ups of the dials)
Interior photos
Operating Manual? Online? A scan of a paper version?
Parts Catalog?
What was your bake time when you were using deck ovens? What is it now?
Does the oven rotate horizontally or vertically? Here's a vertical bagel oven:
and here's a horizontal pizza oven
Could you tell us a little more about what you mean by a 'snot layer?' Do you mean 'gum line?' Are you in contact with the previous management? Can you find out the bake time they were going with for their Dominos type crust?