Welcome,
The company is no longer in business.
I also purchased an incomplete Classic Roadster a few years ago. It was a kit from 91. I'm the third owner and not much had been done to it. So far I have not been able to find a specific "Classic Roadster" parts supplier. I have been piecing it together through Summit, Factory Five, Shell Valley ect. It really depends on what your time frame is like and how much you are willing to put into the project. I'm taking my own sweet time and doing a little here and there.