Several years ago I helped install some solar water pumps in Guatemala. We used both Dankoff and Grundfos pumps. The Grundfos pump was in a hand dug 100'+ well. I think we had 3 or 4 panels powering just that pump. Unless you want to mess with batteries pumping the water from the well for use when there is not sunlight out, the best option would be to pump during sunny hours to some sort of above ground storage tank. Then gravity can do the distribution. You'll need to think about how far above the well you will be pumping the water and how much water you need in order to adequately size the pump.