Philmont gives you a bunch of food. You can cook it as a crew, or you can break the crew up into smaller cook groups.
If you've a relatively small crew (e.g., 7-9), you can get by pretty easily doing as we did on a 50 Miler with a crew of 9: three groups, each rotating among cooking, cleaning, and water duties. We had, if I recall, three MSR stoves, though I think two will do fine at Philmont. We used normal smaller backpacking-size pots (~1.5-2 liters), and they work fine on the Dragonfly, Whisperlite, and Simmerlite.
As I recall from our trek (2005), all the dinners were just add boiling water (or maybe cold water for one of the horrendously bad desserts!), stir, and wait.