A set of batteries you might want to look into are surette rolls ex series has 2.2 v each with 5000 cycles at 80% depth of discharge. You should design your system so you can go 3-5 days without a charge.
For wind for those in North where ice and snow are a big thing look at icewind from Iceland designed for ice and snow.
For well pumps, I am just putting in two new wells I am having back up hand pumps put in.