1. The county commission, county legislative body or combination of counties issuing bonds under the provisions of sections 108.450 to 108.470 shall prescribe the form, details and incidents of the bonds, and shall make such covenants as in its judgment are advisable or necessary to properly secure the payment thereof; but the form, details, incidents, and covenants shall not be inconsistent with any of the provisions of sections 108.450 to 108.470. The county commission, county legislative body or combination of counties may prescribe more restrictive or additional criteria for mortgages qualifying for the purposes specified in section 108.450, and the restrictions and criteria established in the Internal Revenue Code of 1954, as amended, as presently existing or as hereafter amended, for qualification under section 103 of the Internal Revenue Code of 1954, as amended, or other applicable provision thereof for the exemption from federal income taxes of interest paid on revenue bonds issued pursuant to sections 108.450 to 108.470 shall apply to all bonds issued pursuant to sections 108.450 to 108.470.

2. The county commission, legislative body of the county or combination of counties, may prescribe in any order or resolution directing the issuance of bonds hereunder the terms and conditions under which the holder, or any specified percentage of all holders, of any such bonds or of any coupons representing interest accrued thereon may, by civil action, compel the county commission or county legislative body issuing such bonds to perform all duties imposed upon it by the provisions of sections 108.450 to 108.470 and to enforce the performance of any and all of the covenants made by the county commission, or county legislative body, in the issuance of the bonds.

3. The provisions of sections 108.450 to 108.470 shall not be exclusive of other legal methods of financing single-family residential housing, but shall furnish an alternative method of finance.