Otherwise,depending on static level of your well ( how low below ground level the water is if not pumped for several hours), recharge rate of well ( how fast the water level comes back to the static level), and your current wire size, you could go with an inverter and 110 volt pump. Understand that downsizing to 110 volts means doubling the wire resistance. If the pump installer had a little foresight ( thinking you might upgrade to a 3/4 or 1 hp pump) and has a decent gauge wire to your existing pump, possibly you could use a 110 volt 1/2 hp deep well pump ( otherwise means shortening pipe and pump)
My best advise is to give a well driller a call ( or a pump installer) and explain what you are planning and ask them your options are.  Hope that possibly some of this helps  Gary D.