In the event that a public museum is established under ORS 358.345, the city or two or more cities, acting through the governing body or museum commission, may:
(1) Acquire a site or sites for the museum.
(2) Construct a structure or structures to house the museum collection, or lease a structure or structures for such purpose for not more than 50 years.
(3) Use public sites or structures or both for museum purposes.