I think you would be better off booking a nightclub in Dallas itself or someplace that you'd get a decent amount of walk up traffic and could promote the crap out of it to young locals. I know KISS is an older band but the event description (arcade + rock band) is the kind of thing kids who live in cities would eat up.
I think if the owner is giving you the place for free on a Sunday, that's the value he puts on an event on Sunday: $0. That does not bode well for you.