There was a proper 'barn-found' VW Split Screen Pickup a few years back. An old boy bought it in the late 50's (I think) and didn't tell his wife. He hid it away in the barn, then shortly after that he died. It was only discovered (fully intact) when a plane crashed into the barn in recent years. It had something like 250km on the clock.
I don't even think that was worth £35k, let alone a 1980's Golf.