All expenses of the authority incurred in carrying out the provisions of sections 173.350 to 173.450 shall be payable solely from funds provided under such sections, and no liability shall be incurred by the authority beyond the extent to which moneys shall have been provided; except that, for the purpose of meeting the necessary expenses of operation until such date as the authority derives moneys from funds provided hereunder, the authority shall be empowered to borrow such moneys as may be required for the necessary expenses of operation, or to receive advances from funds to be appropriated for this purpose by the general assembly. The borrowed moneys shall be repaid or shall be reimbursed to general revenue within a reasonable time after the authority receives funds as provided in sections 173.350 to 173.450, and shall be repaid solely from such funds. Nothing in sections 173.350 to 173.450 shall be construed as a restriction upon any powers which the authority might otherwise have under any laws of this state, but shall be construed as cumulative of any such powers. Nothing in these sections shall be construed to deprive the state and its governmental subdivisions of their respective powers over assets of the authority or to impair any power thereof of any official or agency of the state and its governmental subdivisions which otherwise may be provided by law.