Sorry for the hijack of thread!Why buy when you can make?
Those panels are not very hard to make. I have done the coupe style by just making a simple wood form and hammering the correct shape.
It helps to have some understanding of metal working concepts. If you go to my website and look up metal working hints you will find the smartflix videos you can rent and learn more.
The patch panels are very different from the coupe to the sedan style bodies. Look at some of the body style books and you should find some pictures that will make it obvious.