The 38000 acre La Jolla Ranch is for sale in Hudspeth County which is the County you are in,It is 7 miles north of Sierra Blanca I googled the ranch and the carrying capacity for the 38000 acre ranch is 400 to 500 cows which is a cow to 75 to 95 arces , the water well on the ranch is 1200 ft deep. Google the ranch and bring up the pictures, do the pictures look like your 40 acres? I believe the County Agent gave you an evasive answer. I am not trying to be negative with you , but honest. I do not see where much can be produced from 40 acres in such an arid-desert area.