This is something I've never done, but it's worth a try...and might lead to some useful information. Duroc is the second most popular breed of commodity pork...so there has to be alot of it out there that isn't specifically labeled "Duroc". Brands like Compart simply capitalize on the branding. You "may" be able to do some leg work by calling packers and researching what pork breeds they use. Most are probably not specific to a single breed, but some may be. There could be someone out there using only Duroc but not branding their label as such. That pork would likely be "normally" priced without the breed label on it. Hey, it's worth a shot if you're willing to put in the work.
As for food service companies like US Foods...typically you need a tax ID. Other than that I minimal order size is needed unless you are able to piggyback off a restaurant (if you have a friend in the business). My distributors have order minimums of around $500-$700...although they aren't extremely strict about that if their truck is in my neighborhood anyway.
