IWL BCNU,
Your VIN plate should be on the right side of the cowl, under the hood. It should start with a single or two-digit number, followed by a two-letter identifier (that could be MR--134.5" or MS--160"). If your VIN plate is there, you should be able to break the code using the Art Deco Site (a link off The Stovebolt Page).
Parts places' links are also here. Jim Carter, Chevs of the 40's, etc might have what you need.
Regards,
