I agree with the above, in my area if I charged over $500 I'd be ripping your boss one. Don't think that's the avenue u want to start on. As I gather this is pretty much a 30 person drop off. There utensils/tables.
12-15 a head (depending how confident u r in the quality of your q) * 30 = 360 to 450
This is pretty typical pricing for 2 meats/2 sides, IMO.