In addition to the bond required any person, firm, corporation, or other entity not engaged in the business of abstracting on January 1, 1984, desiring to enter into the business of compiling or abstracting titles to real estate in any of the counties of the State of Oklahoma from and after the passage of the Oklahoma Abstractors Act, shall have for use in such business an independent set of abstract books or other system of indexes compiled from the instruments of record affecting real estate in the office of the county clerk, and not copied from the indexes in said office, showing in a sufficiently comprehensive form all instruments affecting the title to real property on file, of record and currently available for reproduction in the office of the county clerk and court clerk of the county wherein such business is conducted, provided that nothing in this section shall in any way be construed as to limit the liability of the holder of a certificate of authority to provide an abstract of title compiled and certified to in accordance with the Oklahoma Abstractors Act.