Backyard concert for 150 with a food truck: two standard units enough?
I'm planning a backyard concert for 150 guests with a food truck on site. The event runs four hours, and we're serving beer and wine. The yard is flat grass, and a truck can pull right up to the edge for delivery and service. I'm trying to keep costs reasonable, but I don't want people waiting in long lines. My initial thought was two standard units, but I'm wondering if that's enough with alcohol involved. Should I add a third standard unit, or maybe look at a deluxe unit with a sink? Also, do I need an ADA-compliant unit for a private event like this?