46 Buick - Need Some Help

[Bib_Overalls]

My friend Marty is building a custom 1946 Buick Roadmaster convertible. It is at the body shop now for final fit and paint. There was a fire in the building where some of the parts were being stored. And during the clean up the filler panel that goes between the driver's side door and rear fender was pitched. So, he has an urgent need for a replacement. Picture shows the needed piece from the passenger's side. Can you help?

http://farm4.static.flickr.com/3146/2763989401_1fea67fe01_o.jpg