The county governing bodies of the several counties are hereby authorized to issue any revenue bonds or warrants deemed essential in accordance with existing statutes and laws of the State of Alabama to meet their financial obligations under a property reappraisal program; provided, that any revenue bonds or warrants issued for a property reappraisal program other than that required by this article shall be approved by the Legislature. The heretofore stated provision for financing is hereby authorized to be applied by the state to cover the expenses necessarily incurred to finance the reappraisal of property in any and all counties, whenever it shall become necessary for the Department of Revenue to conduct the property reappraisal program in such county. The proceeds from such bonds or warrants issued by the state or county shall be repaid on the same proration basis as set out previously in Section 40-7-68.