I finally found a local guy to print reproduction VIN plates like the 1/2 ton plates available from the Filling Station Reproduction parts, but with 16000 for the GVW. I don't know how many I should order, maybe 50. Mongo, if you read this, how many two speed decals did you have made up?
The plate would be for my 1948, and I don't know what other years it would be good for. There is a picture at the photolink
http://img.villagephotos.com/p/2005-12/1118798/vinplate.jpg