had a blow-out tire at speed and pretty well mangled my passenger fender on my 1934 Ford 2 Door (purchased last week!).
When talking to a buddy, he mentioned that I may have to replace the "skin" on the fender. When questioning him, he told me that the fenders are coated with fiberglass. ( I see a thick layer of material between the paint and underlying steel.)
Is this normal, necessary, &/or easily repaired by my usual paint/body man? Is this layer essential just "Bondo"? Why is it used?
Links to the pictures are below. I would appreciate some comments/reassurance/guidance.

http://s157.photobucket.com/albums/t...ut%2001292010/