Unless the agreement between the issuer and the State Comptroller provides otherwise, the State Comptroller may contract with a bank or trust company for the establishment, maintenance and custody of sinking funds. Such bank or trust company shall meet the requirements of section 22.10(d)(1)(a) of the Local Finance Law and shall be selected on the basis of its reliability, experience, overall ability to provide high-quality service, cost and any other factors deemed relevant by the State Comptroller.