With that much standing water you have about 500 gallons stored in the well. I don’t think you will need a storage tank if you are careful of how much you use for long term water demands. I would set up my drip system and cow water tanks to work at about 3 GPM. That should leave you some reserve in the well for use in the house.
I agree with the 1.5HP, 10 GPM pump, set at 380’. I would control it with the CSV1A Cycle Stop Valve and a 4.5 gallon tank as comes with the Pside-Kick constant pressure control kit. Otherwise a 10 GPM pump will cycle itself to death when running the drip or stock tanks at 3 GPM. The CSV will just keep the pump running steady for the drip or stock tanks, and the pump won’t be cycling on and off. And when you need more water for the house, the CSV will open up and give you up to about 12 GPM, which that pump can produce when needed.
Because of the high static water level that pump can build about 220 PSI back-pressure before the CSV. Just make sure to use pipe that has a rating to handle that pressure. I would also add a Cycle Sensor dry well protection relay. This will save the pump by shutting it off for you in case you over pump the well. And the Cycle Sensor can be set to automatically turn the pump back on after a set time to let the well recoup.