Have you tried Ed Farris?
Ed is usually the first call I make, and he has been...and continues to be a tremendous help on the restoration process. He is a valuable resource for anyone with questions regarding the M114 series vehicles. (And probably a lot of other military vehicles as well)
The crazy part is, there's NOS parts available...but folks seem to find themselves wanting to just collect them. I suppose they're waiting for someone to come by for a visit and say..."wow man, you collect speedometers? What a coincidence!! I collect hose clamps!!"
Who knows....
Anyway, when I was 16, I used to pry the emblems off the cars heading for the crusher and collect them. But it was because the whole car was a little out of my reach, and the fact that I was just 16