I know this car, the owner that raced it owned a Ford Dealership and I raced against him. He did win T1 in the San Francisco SCCA region with this car and it is extremely clean and was always dealership maintained.
Thanks for the additional facts.
It would have a SCCA logbook available as well as the documents as to its regional SCCA Championship. That sure increases the value for a race car.
I am sorry that you missed this car. I'd say that it is worth well above $30K and maybe much more. It had to have an extra set of wheels and tires?