concerts? how to manual requested!

My frat convinced two bands off the Warped tour to play a concert for us at our college. I'm sure that booking a venue, an' gettin word out isn't gonna be hard. Convinving all the brothers to support this however has proved to be tricky. We'll most likely vote it down on our first meeting.

Do you think that throwing major concerts for social events is way over our heads as a fraternity.

If not how would you recomend we we procede with somethin' like this? Have you done it before?