A few weeks ago there was a Kijiji posting from Lac St-Jean, Quebec of Deuce and a Half parts.
http://saguenay.kijiji.ca/c-autos-et...AdIdZ468619207
"I have a lot of different pieces of model military truck M211 6 X 6 GMC of the 1970s. Stored for more than 25 years. The owner sold several military trucks at the time. One of these trucks had been dismantled. Several pieces were sold and I offer what is still available. An engine 6 cylinders fairly complete pieces. It was reassembled in 1980. Including the crankshaft, camshaft, the crankcase, cylinders, valve cover, and the engine block itself. I also have the the oil filter, 24 volt starter and oil fill kit. These three elements will be sales to share. The engine is in the Lac St-Jean. See my other listings of government surplus. Price is negotiable."
Be advised, this is a one day drive from even the civilized parts of Quebec.