1-16A-54.2. Amount and terms of securities purchased--Mortgage--Insurance and guaranties. Any securities purchased pursuant to § 1-16A-54.1 shall have the same principal amounts, maturities, and interest rates as the bonds being issued pursuant to § 1-16A-54.1. If the authority deems it advisable, the securities may be secured by a first mortgage lien on the educational or health facility being financed. If a mortgage is required, the securities are subject to any exception approved by the authority and created by a mortgage instrument satisfactory to the authority. The securities may be insured or guaranteed by others.