That is a mystery. The kid I sold it to turned out to be a real jackass. At some point a couple years later it just vanished. I could get nothing out of him or his brothers. One of them said something about "pushed over a cliff." Someone else said something similarly vague. I think it was involved in a (maybe serious) hit and run, and got buried, or "pushed off a cliff."
When I bought it, the original owner gave me the factory manual, which had the VIN jotted in the first couple pages. At some point the first couple pages disappeared over the years with handling and storage. I may have the VIN on an old emissions ticket I "was presented with" in San Diego. I don't know, offhand, where that might be