Nate,
There is no such thing as a Fjord "model C" engine, just the "A" and "B." Some model "B" engines had a large "C" cast on the cylinder head.
On some Model A boards, I have seen reliable reports of a few U.S. made NOS engines appearing here and there. Not many, but a few. The Model A experts also say that the Russian engines aren't that bad.
I'm sure he'll sell those 356 engines to anyone if they can come up with the cash. Can't be cheap.