In order to promote the history and culture of Native Americans for the mutual benefit of the State of Oklahoma and its Indian and non-Indian citizens, there is hereby created the “Native American Cultural and Educational Authority”, which Authority is hereby authorized and empowered to construct, maintain, repair and operate a Native American cultural center, museum and theme park, along with commercial facilities as defined by Section 1226.3 of this title, within the State of Oklahoma as shall be approved by the Authority and to issue revenue bonds of the Authority payable solely from revenues to pay the cost of such projects. Provided, no state appropriations shall be used to pay costs of financing or constructing commercial facilities, except for commercial elements within and incidental to the Cultural Center.