(a) The bonds issued under this chapter shall be special obligations of the board. As security for the payment of the bonds, the board may provide for a pledge of and lien or mortgage on:
(1) the receipts of all kinds of the veterans’ land fund, the veterans’ housing assistance fund, and the veterans’ housing assistance fund II determined by the board, on the basis of facts, circumstances, and expectations at the time of issuance of the bonds, not to be required for the payment of principal of or interest on the general obligation bonds issued by the board to augment the funds or to make payments with respect to principal or interest under a bond enhancement agreement with respect to the general obligation bonds;
(2) the assets of the veterans’ land fund, the veterans’ housing assistance fund, or the veterans’ housing assistance fund II determined by the board on the basis of facts, circumstances, and expectations at the time of issuance of the bonds not to be required for the purposes of the fund;
(3) the payments and repayments received by the board from the board’s financial assistance provided under this chapter;
(4) other program revenues;
(5) other available revenues of the board; and
(6) one or more veterans homes.
(b) The pledge and lien or mortgage are to be provided for and determined in accordance with the resolution of the board providing for the issuance and sale of the bonds.