Btw:
“A Fistful of Dollars was filmed in 11 weeks, from April to June 1964.”
That’s quite a lot for a film which is often called “cheap” or even a B-picture. The budget of 180.000 to 250.000 $ is also far from sparse for a film which uses only unknown actors, a crew without big names, used costumes and a few locations, which mostly were already built and only modified for the film’s needs.
And more than 700 shots is not bad for a film of the 60s.