(a) The proceeds of any securities issued by a municipality for the purpose referred to in clause (3) of subsection (a) of Section 11-63-2 may be applied for payment of principal, interest, and redemption premium with respect to the corporation securities to be paid from such proceeds and the expenses of issuing such municipal securities.
(b) The aggregate principal amount of any such municipal securities may not exceed the total of (1) the then outstanding principal amount of the corporation securities for payment of which such municipal securities are to be issued, (2) the interest accrued or to accrue to the respective maturities of such corporation securities or, in the case of any of the corporation securities to be called for redemption, whether on the earliest date on which under their terms they may be redeemed or on some later date or dates, the interest, accrued or to accrue, on such corporation securities to the date or dates on which they are to be redeemed, (3) the amount of any redemption premium required, by the terms of any corporation securities to be so redeemed, to be paid as a condition to their redemption prior to their respective maturities and (4) the amount of the expenses of the issuance of such municipal securities.