I would use a 3/4 HP, 10 GPM submersible because of the elevation and distance. #12 wire can be run 480' max for a 3/4 HP. You really need the power to go from the pressure swith at the pressure tank to the pump. So it would be hard to go the 80' to the well with power, unless you put the pressure tank at the well. You could put one of the Pside-Kick kits with only a 4.5 gallon tank at the well. That way you wouldn't need a very large cover over the well, and you could pull off the electric line to run a heater or heat tape to keep it from freezing. Putting the tank at the well will save you 270' of wire, which might pay for the box to put over the well and small tank.