Count me as a REO fan. All I can offer for a REO of that vintage are some owners manuals and miscellaneous paper goods. I think that Egge offers some parts for your engine. There doesn't seem to be much REO information on the web. I bought all of my knowledge off of ebay. I have two M35 military trucks with the REO gold comet 331 engine. The REO 331 is a much better product than it's contemporary, the 302 gmc.