You might try going to www.Autobodystore.com
They are really experienced body and paint guys as well as Len who runs the site and a body shop and the store. His prices are good and his service as well but I am not promoting any of the brands he sells. You might search the archives there as I know there has been similar questions about DA's , etc.
I think you will learn a lot from this site as well.
Hope this helps
MikeC