Rare, indeed! My friend Maroon just found another F-V nose. These things are as rare as hen's teeth. I note that several F-M B units (Max Gray) have been sold recently by Trainz, all powered, which I might have used for pushing my doorstop A unit. Alas, they sold for more than my target price.
I did try to search for this thread - finally got it by going advanced. I really should take Simon's advice - my first search was for "Erie-Built" and OGR said "nope." I found others on PAs and E7s. Still have not received any more castings from my foundry guy. I shall push a bit.