Nice. Mom cooked a for a lot of family weddings - standard Texas brisket, beans, and potato salad dinner. Her notes say 8# of pintos feeds 100 as a side dish, I've found that to be pretty accurate.
probably a pretty good measure ... we always planned for heavy eaters and used a pound per 10 people, or 10 pounds for 100 people as a side dish for either BBQ or fried catfish