Came to say this. The brand Ego has an attachment to make their lawn mower battery a plug and play 120v source. Not to mention new trucks and even cars have 120v outlets.

This would make it more quieter and easier to transport.

One person could do this, but would be most effective with maybe 6. driver, front and rear spotters, two people to hold down stencil, one to paint.

*Also, leave cellphones at home.