The limitations imposed by law upon school districts for the purpose of purchasing or improving a site or sites, constructing, furnishing, equipping, repairing, remodeling or making additions to buildings necessary for school district purposes, including housing and boarding pupils enrolled in an area vocational school operated under the board of education of the school district, or for the purpose of purchasing school buses may be modified as provided in article 54 of chapter 72 of [the] Kansas Statutes Annotated.