Any charter commission established under this chapter shall prepare and file the charter proposed by it not later than nine (9) months after the date of its initial meeting, or within such extended limit of time as may be authorized by resolution of the governing bodies of the county and principal city. Copies of the proposed charter shall be filed with the county clerk, with the city clerk of each incorporated municipality in the county and with the county election commission. The copies shall be public records, available for inspection or examination by any interested person. The charter commission shall also furnish or make available to every daily or weekly newspaper published in the county a complete copy of the charter. The charter commission shall take such other steps within the limitation of its available funds as it deems reasonable and appropriate to inform the public throughout the county of the contents of the proposed charter, and the proposed charter may be published or summarized in pamphlets and booklets to be made available for general distribution.