Indeed a great article!
Only a couple of quibbles. I hesitate to even mention them because I doubt I could have done half as good a job as Col. Douglas Mortimer did; but, anyway...
I understand why you would exclude Hilton and your explanation is fine. But, let me give you an example of why I think he should be included. When someone is discussing the official James Bond movies do they ignore the films with Moore, Lazenby, Dalton, and so forth?
Personally, I would like to ignore most of those because I think Connery was the ultimate Bond (just as I think Garko was the ultimate Sartana). But, that really isn't looking at the big picture, so to speak. Just my opinion, of course.
And...yes, Sartana became a sort of James Bond in the West figure after Carnimeo took over; but, initially Parolini and Garko conceived him as a spectral, "supernatural" gunman. I wouldn't go so far as to say Sartana's character is a ghost; but, it is hinted at (especially in the first film) that he is not of this world. The medallion that Lasky wears at one point in the film is to ward off evil spirits and so forth.
I think what sets the Sartana character apart from all the other Spaghetti Western protagonists is this mystic aura and I am always amazed when people seem to blow right by that for the Bond influence.
But, that all said.....Parolini was very much into spy films (not only was he a fan of the Bond films, he made several spy films of his own in the Kommissar X series) and liked adding those gadgetry elements to all of his films.
But, enough of that....
Like I said when I started, that is a heck of a good article, Col.!!