A piece of 1/4" brass flat stock and a band saw would serve the same purpose to rough out the part, and any so-called "machinist" who can't make a simple thrust washer with a reasonable amount of effort probably doesn't have any business working on an antique engine. Everyone wants a quick, simple, no-brainer fix these days. That's why they demand a "kit" for everything associated with things like IFS front ends, disc brake conversions, etc. I'm firmly convinced that creative thinking and "making things fit" will probably die out entirely once my generation starts looking at the brown side of the grass! Pretty soon, all the stovebolt sixes will be relegated to the scrap heap, and any of the old trucks that survive will be running "belly button" ("Everybody's got one!") LS engines!
Jerry