Depends on how much other food.
Personally, I'd try to hit about 50 pounds raw weight. I get about 60% so that would be 30# cooked x 3 orders per pound would give me about 90 sandwiches. But YMMV!
Southern Brethren BBQ Competition Team
"It's all about getting paid!" - Myron Mixon
"I love being hated in my hometown!" - David Hair
KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker