Volunteer Musicians need for fringe fest in Baton Rouge, Louisiana For Sale

A friend wrote a play and I wrote Music for it. He wants live music and has asked for musicians. Unfortunately He cant offer any money up front but may be able to pay some after the doors sales.
Any and all volunteers welcome. Must be able to read music and lean the music in a couple weeks.
We need the following specifically at the very least, but would love and and all types of instruments:
Piano
violin
flute
snare
upright bass (must use bow)
and a Conductor
Performance Schedule:
Public dress rehearsal November 19th 7:00
Full performances
November 20th 7:00 & 9:00
November 21st 7:00 & 9:00
November 22nd 5:00, 7:00, & 9:00
November 23rd 7:00, 9:00, 11:00
Plus a few rehearsals a beginning a few weeks before the show.
I hope to hear from you.