If you go watch this video and jump to the 11:57 mark, you'll see a great shot of the passenger side outside mirror. It looks similar to a stock mirror, but much thicker and more heavy duty. I've looked around at several repro parts websites and can't find any like those. Any idea what kind of mirrors are on this car?

 

They may be Morris Classic Concepts 'Clear Shot' mirrors...
Morris Classic Concepts | 864-987-0032
scroll down on first page.