I almost always parbake my crusts - sometimes immediately before topping, and other times I freeze them for later use. That said, I make only gluten-free crusts these days, and the recipe and crust thickness does make a huge difference in how long I parbake them.
Since you said thin crust, I would think about 5-8 minutes, then ten more after you top it. But, without having used that recipe, I'm not certain. My favorite is a tapioca crust - based on a South American cheese bread recipe - and even though it's quite thin, it takes 12-15 minutes to parbake, then ten more at 475 with the toppings.
Can you make a part of a recipe ahead of time and test it? Just bake it until it's not gooey, but isn't brown at all.
For packaging it, I let them cool and wrap in foil, then plastic - but that's because I'm freezing them. Since you are using them quickly, plastic would be fine I would think.