I took down a 65' windmill tower about 5 years ago. Then last spring I came into a 10' diameter Aermotor fan assembly to put on top of it. It needs some refurbishing but I hope to get it done this coming spring. An Aermotor of this size will pull water from a depth of 1000' without a problem and pump it for miles on level ground. Hope this info helps you. New ones are expensive but if you can find a used model that may be the way to go. Also, FIASA (the Argentinian equivalent of Aermotor) windmills are available at a significant cost savings.

Mike