Any chance that this is a home-built trailer?? If that's the case, the original owner/builder should have paperwork related to the purchase of the items. Have you checked the tongue of the trailer - likely the street side toward the front - for a series of numbers stamped into the frame? That would be the VIN#. I'd be leery of buying anything like that without a Title, but with the VIN# you could check with the registration office or even the police department to see if there is anything reported as stolen. Not even a Bill of Sale or any purchase documents from where it was bought?? Gotta have some paperwork or I'd steer clear.