[Errant]

I agree with Kart and add that there are hand pumps that also allow you to use your electric pump but they're about $800.

Depending upon voltage, you might also look into getting an inverter that will use your vehicle's battery or solar charged batteries to power the well if a generator is not cost/maintenance effective.

Check out these videos on Youtube for other ideas.

Pumps - standard EMAS handpump using pipes

Well drilling - sludging with temporary casing

[Kartographer]

You might look into a water tank, even something temporary. Maybe buy a larger backyard pool on clearance or a large tank something that you could run your generator or your use your solar to fill. That way you don’t have to run it all the time and yet you could keep a good quantity of water readily available.

[Minus_The_Bear]

Rainechange Aquabloxx...

I believe the primary purpose for this product is for cosmetic fountains. But they do sell larger modular holding tanks for rainwater capture and storage. Could easily work for gardening or something else.