Section 419.5 - Determination of rent1. Prior to entering into a lease, sale contract or loan agreement with respect to any project, the governing body must determine the amount necessary in each year to pay the principal of and the interest on the bonds proposed to be issued to finance such project; the amount necessary to be paid each year into any reserve funds which the governing body may deem advisable to establish in connection with the retirement of the proposed bonds and the maintenance of the project; and unless the terms of the lease, sale contract or loan agreement provide that the lessee or contracting party shall maintain the project and carry all proper insurance with respect thereto, the estimated cost of maintaining the project in good repair and keeping it properly insured.2. The determination and findings of the governing body, required to be made by subsection 1 of this section, shall be set forth in the proceedings under which the proposed bonds are to be issued; provided, however, that the foregoing amounts need not be expressed in dollars and cents in the lease, sale contract or loan agreement or in the proceedings under which the bonds are authorized to be issued, but may be set forth in the form of a formula or formulas. Prior to the issuance of the bonds authorized by this chapter the municipality shall enter into a lease, sale contract or loan agreement with respect to the project which shall require the lessee or contracting party to complete the project and which shall provide for payment to the municipality of such rentals or payments as, upon the basis of such determinations and findings, will be sufficient to pay the principal of and interest on the bonds issued to finance the project; to build up and maintain any reserves deemed advisable, by the governing body, in connection therewith and unless the lease, sale contract or loan agreement obligates the lessee or contracting party to pay for the maintenance and insurance on the project, to pay the costs of maintaining the project in good repair and keeping it properly insured.C66, 71, 73, 75, 77, 79, 81, §419.5