I think that if this pump is being listed as a "Ford Rebuild", then technically the listing is correct in that the Ford rebuild listings tend to be a generic one and this pump may have been listed by the "Ford Rebuilder" as fitting all of those applications.
The argument here is that it is wrong by "Concourse, and assembly line" standards which the Ford rebuilt applications would not ever have considered seriously.
In my experiences with the "Ford Rebuilt" parts, the likeliness of you getting the exact replacement was almost non-existent UNLESS you had YOUR part rebuilt by them. I had a Ford Certified Rebuilder here that would do that for you.
Even so, the finish on it was not likely to even come close to the original new part.
I SUSPECT Bob, that if you do get a response from the seller (I wouldn't hold my breath on that) he is going to reply something to that effect essentially laughing off what you replied to him initially?
Isn't this just one of the things that makes competing in "Thoroughbred" so difficult, i.e., finding original "assembly line parts"?