Ok,this was just pulled out of the camper. It was a clown show. Just 3 wires sticking out.

So, what do I need to bring to hook up the electrical. On this model (Onan 6.5) it was straight 220. How/what do I need to bring with to split it down to 2x 120? How to I set this test outlet up so I can tote it around? What components? Aligator clips or should I really wire it up and tape it for safety? (if it happens again.)