Sections 37-7-351 through 37-7-359 are intended to be and shall be construed as being supplemental to all existing laws covering the acquisition, use and maintenance of school buildings by school districts. It is further provided that, as to school buildings constructed or leased pursuant to the provisions of Sections 37-7-351 through 37-7-359, it shall not be necessary to comply with the provisions of other laws concerning acquisition, use and maintenance of school buildings by school districts except as herein specifically required.