Sec. 3. The department shall pay lease rentals for leases that the department has entered into under this chapter that secure bonds issued under this chapter from any legally available revenues, including:
(1) payments received from an operator;
(2) federal highway revenues, subject to the limitations in IC 8-14.5-7;
(3) distributions from the state highway fund; and
(4) other funds available to the department for such purpose.