Sir, here is a short bit of advice about EMP: The older diesel farm tractors would probably be usable after an event because they have no chips or transistors to burn out, either in engines or transmissions. They’d be slow but still usable for as long as you have fuel with either gravity flow or manual pumps for fueling. Hook one to a trailer or former motor home and welcome to the post 21st century nomads. They could also power most PTO driven generators if the generator circuitry has escaped the EMP. In our area a lot of people collect old tractors for parades and farm shows, including townsfolk. Just a thought. Thanks, – Jim.