(L) The establishment of a fund or funds for the creation of a debt service reserve, a renewal and replacement reserve, or such other funds or reserves, including for ad valorem taxes and insurance, as the authority may approve with respect to the financing and operation of any qualifying improvement and as may be authorized by any bond resolution, trust agreement, indenture of trust, or similar instrument or agreement pursuant to the provisions of which the issuance of any revenue bonds, notes, or other obligations of the authority may be authorized. Any cost, obligation, or expense incurred for any of the foregoing purposes shall be a part of such defined term and may be paid or reimbursed as such out of proceeds of revenue bonds, notes, or other obligations issued by the authority.