There's another danger that you may get the job based on 'Code minimum' and spend the rest of your life in court because it didn't meet their unstated expectations.
Imagine how the hall could be used. Even if it's just a crafts show, 2 people using electric glue guns could overload a single circuit. Each table location would need its own breaker. What about folks who wanted power in order to show off their wares?
I agree 100% with Renos on this. You're being asked to give a price for a 'pig in a poke' or at the very least to do free design work so that someone else can build it. Don't fall into a trap that you'll possibly never be able to get out of.
