How would I research this? I'd start by calling Goodguys and telling them that I'm trying to chase down the builder or last owner of a chopped top coupe built in a 33/34 Ford Coupe style. Phone number is on the right side of this page. If they can't help, ask them who to call next. This car is nice enough to have been shown many times, so I'll bet someone knows something about it in the show circuit.
https://good-guys.com/info/contact-us