I currently have an 8 ft diameter concrete ring 6 inches wide with anchor bolts every foot. This is located over a spring that puts out 180 gallon/minute. The windmill would pump water to a holding tank that would supply water for a drinking fountain inside. The lighthouse will be our yard light. Does anybody have any idea where I can get plans for a lighthouse this size? It will be over 20 ft high and I want the exterior maintenace free.