The purposes of this part are to:
(1) encourage the restoration, preservation, and maintenance of historic sites and buildings owned by the state of Montana;
(2) encourage the participation of Montana citizens and groups in the local management, on a nonprofit basis, of historic sites and buildings through the donation of time, materials, and resources toward the restoration and preservation of these properties;
(3) remove unnecessary barriers to the efficient and cost-effective management of historic sites and buildings by qualified and responsible local nonprofit corporations as contracted managers; and
(4) retain state ownership of historic sites and buildings and state control over decisions concerning their historic integrity and preservation so that the citizens of the state may realize the greatest benefits available from each property.