This took way too much time as I was hung up on a 1950/51 Oldsmobile as the donor car. I must have looked at a hundred photos of the "Polynesian" Olds trying to find this puzzle car.
I finally gave up on the Oldsmobile connection and tried Ford.
Anyway, it is a 1951 Ford named X-51 built by Ron Courtney perhaps around 1958.
I do not know if it is still about.