Upon order of the board of directors of said authority, all expenses incurred in connection with the authorization, preparation, sale, and issuance of bonds authorized herein and by Amendment 618 shall be paid out of the proceeds thereof. The proceeds thereof remaining after payment of such expenses, together with the income derived from the investment and reinvestment of such proceeds (including income derived from the investment and reinvestment of previously derived income) shall be disbursed from time to time on the order of said authority for payment of costs incurred in carrying out the purposes authorized in said amendment, as follows: (1) the sum of $13,000,000 shall be used for providing and improving animal diagnostic laboratories in the state in order to provide improved animal health testing for livestock and poultry producers, veterinarians, animal owners and animal-related businesses generally; (2) the sum of $18,200,000 shall be used for providing and improving agricultural and livestock educational and research facilities in the state; (3) the sum of $11,300,000 shall be used for providing and improving forestry, plant science and nursery crop educational and research facilities in the state; (4) the sum of $8,000,000 shall be used for providing and improving veterinary medicine instructional and research facilities in the state; and (5) the sum of $1,500,000 shall be used for providing structures and offices for use by the Alabama Agricultural Experiment Station System at regional research extension centers. Disbursements for such purposes shall be made taking into account matching or other funds at the time available to pay a portion of the costs of facilities as aforesaid, and said authority is authorized to provide for and coordinate the expenditure of the aforesaid bond proceeds and of such matching or other funds in providing said facilities through agreements to be entered into with the state's Morill Act land grant universities and those institutions eligible under the provisions of Title 7, Sections 3221, 3222, 3222(b), and 3222(c), United States Code, to receive federal appropriations in support of agriculture and forestry extension and research and for the acquisition and improvement of agricultural and food sciences facilities and equipment, and such other agencies and institutions as shall be determined to be appropriate and convenient therefor. The authority shall also ensure that not less than approximately $7,500,000 of the aforesaid proceeds remaining after payment of expenses as aforesaid and investment income is disbursed to provide for facilities under the control of Alabama Agricultural and Mechanical University. The costs of architectural and supervisory services, from whatever source provided, shall be deemed to constitute a capital cost or outlay for which bond proceeds and investment income are authorized to be expended by the provisions of this article. Each building or facility constructed, expanded, renovated, altered or otherwise improved wholly or in part with such proceeds shall be constructed or improved pursuant to plans and specifications approved by said authority and the technical staff of the Building Commission, and shall upon completion be operated by or in cooperation with the aforesaid land grant universities and institutions under arrangements to be entered into by the authority and said universities and institutions respectively.