What do you know about the car other than it’s the original owner?
Does it have a TAC certificate, what is the VIN, what is the JAL number, how many miles are on the odometer? Has anything been rebuilt, such as the motor, the transmission, the brake booster, etc.
Can you take some photos and post them here?
If you know the owner, all the better.
I would ask the above questions and give that info to the members so they can chime in on their views.