Prior to the referendum vote conducted by the director pursuant to Section 72092, the proponents of the commission shall deposit with the director such amount as the director may deem necessary to defray the expenses of preparing the necessary lists and information and conducting the vote.

Any unused funds in carrying out the provisions of Section 72092 shall be returned to the proponents of the commission who deposited the funds with the director.

Upon establishment of the commission, the commission is authorized to reimburse the proponents of the commission for any funds deposited with the director and which were used in carrying out the provisions of Section 72092, and for any legal expenses and costs incurred in establishing the commission.