I have a cargo van and cargo trailer. I bought a Haulmark trailer, 6x12 double axel, blue to match the van. I love it. I have not yet set it up with selves, but I wired lights with a battery and an inverter. I can plug the trailer in of run off the battery, or run off the van. Dave I think that you are from chicago area, I bought mine from libertyville. They were the cheapest and nicest. If interested I can give you the contacts.
Eric