Before buying this trailer I would also inquire of the seller why they havent attempted to register it, selling a trailer or car in BC without registration/transfer papers is a problem and would be far easier to sell if it had them.
I would not touch this trailer if it doesnt have a clear original
VIN number as it cant be registered or insured in BC without one. It also cant be exported to the US without a
vin & the BC registration/transfer papers either. If it has a
VIN I would go to ICBC (the provincial run insurance company) before I purchased the trailer and ask them what needs to happen to change ownership and register it. Among other things It will need to go through an inspection prior to being registered.
Edit addition: If this trailer had been previously registered by the seller and they simply lost the paper work they shouldnt have a big problem obtaining a copy of the last
registration done on it from ICBC saving a lot of headaches for the new owner.
No way of getting around the above by claim it as a home made u- bilt either. Starting July 1, 2012, customers registering u-bilt trailers (1,400 kg gross vehicle
weight or less) must provide original support documents for all major component parts used to build the trailer. This change was made to help protect from fraud and make it more challenging to register stolen trailers.
Have no idea as to the history of this trailer I am just highlighting issues that could come about if purchased without the correct paper work