The Treasurer is authorized to borrow funds for the purposes of the Tax-Exempt Proceeds Fund and to issue and sell notes of the state on such terms and conditions as the Treasurer shall determine. Such notes shall be signed by the Treasurer and the full faith and credit of the state may be pledged by the Treasurer to payment of the principal of and interest on such notes which shall be repaid by the Treasurer first from funds, to the extent available, from the Tax-Exempt Proceeds Fund and secondly from the state’s General Fund. As part of the contract with the holders of such notes the Treasurer may make such covenants as the Treasurer shall determine will make the notes more marketable or will tend to insure that the moneys payable to the Tax-Exempt Proceeds Fund will be sufficient to pay the principal of and interest on the notes as the same become due and payable, including such covenants with respect to interest exemption on the notes in the hands of the holders thereof as he determines is necessary. In case it becomes necessary to pay from the General Fund all or any portion of the principal or interest, or both, the Treasurer shall reimburse the General Fund from the first moneys which become available for that purpose in the Tax-Exempt Proceeds Fund. The proceeds of such borrowings shall be paid over to the Tax-Exempt Proceeds Fund, providing any expense incurred in connection with the sale of said notes shall be paid from the accrued interest and premiums or from the proceeds of the sale of such notes.