Jack wrote:
Laminating metal onto a 33/34 firewall strikes me as a pretty serious chore. The shape of the firewall is very complex.

Met a guy at a local car show recently that had a 32 3WC, chopped, channeled, flattie powered, flat black, steel wheels, pure old school look.
Car was a beauty. It wasn't until he opened the trunk that I realized that it was a glass car. He had molded in a steel 32 firewall into the body that looked like a factory build. Don't know if doing that with a 33 would be that much more difficult, but the final results were amazing.

Next time I go to that show I will have to take some photos of that car to share.