Jeff,
The majority of these were sets but there were a few other items offered like Santa Fe AA units. Also I recall a Wabash AB set without any rolling stock. And I think there was a CC version of a GG-1.
I don't know of a complete list that's published anywhere but I do recall a thread on these a while back where somebody attempted to compile a list. Suggest a search on "Conventional Classics."
Prices on these on the auction site tend to be way inflated, IMO. Some are downright laughable but that's the nature of the beast for some sellers.
