I have a Airco gasoline welder, it’s powered by 12hp Kohler engine, it runs and welds good, it’s mounted on a single axle small trailer, it has two 110Volt working plugs on it to power your grinder and lights, I have it priced for a quick sale for $800 I can start it up with my big battery charger and you can try it out, it will need a new battery, it uses the garden tractor size battery.