1. Bonds of an authority shall be authorized by its resolution and may be issued in one or more series and shall bear such date or dates, be payable upon demand or mature at such time or times, bear interest at such rate or rates, not in excess of the maximum rate, if any, applicable to general and business corporations, be in such denomination or denominations, be in such form either coupon or registered, carry such conversion or registration privileges, have such rank or priority, be executed in such manner, be payable in such medium of payment, at such place or places, and be subject to such terms of redemption, with or without premium, as such resolution, its trust indenture or mortgage may provide.

2. The bonds shall be sold at not less than ninety-five percent of par at public or, if the authority determines it is in the best interest of the authority, at private sale, notwithstanding the provisions of section 108.170. The reason or reasons why private sale is in the best interest of the authority shall be set forth in the order or resolution authorizing the private sale; provided, however, that any issue in excess of ten million dollars shall be sold only at public sale; provided, further, that notice of such public or private sale shall be published in a newspaper having a general circulation in the area of operation and such medium of publication as the authority may deem at least once and not later than ten days prior to such public or private sale. The decision of the authority shall be conclusive.