Gents,
Good sites posted for old, custom, and remake of plates. It took me time and a lot of searching but finally I found what I was looking for. In my search I also found someone to refurbish them. Within Stovebolt there are articles on doing your own plates. If you have the time and gear then do it yourself but there are people who make a living refurbishing plates.
Good on you for wanting to put old plates on your truck.
State very on the use and registration of old plates. Look up your state DOT and do some home work. I will not registered my truck as a classic or antique because it will be a daily driver.
Bread
http://i984.photobucket.com/albums/ae321/brdeight/1939%20Chevy%20Truck/Truck%20before/P1100429.jpghttp://i984.photobucket.com/albums/ae321/brdeight/1939%20Chevy%20Truck/Truck%20before/P4110020.jpg