The compensation and expenses of the supreme court nominating commission, the expenses of the members of a district judicial nominating commission and the compensation of the clerk, and clerk’s expenses for supplies, equipment, and clerical and other assistance necessary to carry out the provisions of this act, including official hospitality and any expenses and clerical assistance necessary to perform the clerk’s duties with respect to the nonpartisan selection of judges, shall be paid from available funds. The director of accounts and reports is hereby authorized to draw warrants for the use and purposes specified in this section upon the presentation of vouchers duly itemized and approved by the clerk of the supreme court.