(a) The authorizing resolution may provide for the execution by the district with a bank or trust company, within or without the State of Arkansas, of a trust indenture.
(b) The trust indenture may contain any terms, covenants, and conditions that are deemed desirable by the board including, without limitation, those pertaining to:
(1) The maintenance of various funds and reserves;
(2) The nature and extent of the security;
(3) The issuance of additional bonds and the nature of the lien and pledge, parity or priority, in that event;
(4) The custody and application of the proceeds of the bonds;
(5) The collection and disposition of assessments and of revenues;
(6) The investing and reinvesting, in securities specified by the board, of any moneys during periods not needed for authorized purposes; and
(7) The rights, duties, and obligations of the board and the holders and registered owners of the bonds.