Notwithstanding any other provision of this code to the contrary, the director, in establishing minimum prices to be paid by handlers to producers, for market milk in any marketing area, may establish, as the applicable minimum prices, those prices applicable within the marketing area of ultimate usage of such market milk, those prices applicable within the marketing area where the plant of first receipt of such market milk is located, those prices applicable in the marketing area where the producers place of production is located, or any of the above or any combination of the above.