In order to provide greater sources of financing and to encourage an increase in the capacity of grain and soybean storage facilities within the state, cities and counties may issue revenue bonds, to be originally purchased by financial institutions or other bond purchasers which are located within the city or county issuing the bonds, to finance the acquisition of grain and soybean storage facilities which may be located anywhere within the state. The revenue bonds shall be issued pursuant to this chapter and all provisions of this chapter shall apply except that the term “project” as defined in section 419.1 includes on-farm grain and soybean storage facilities, which facilities may include the grain or soybean drying and aerating equipment, and the project need not be located within the city or county issuing the revenue bonds.