I live in a city of about 750,000 here in Japan and I can get E-6 films (both 35mm and 120) done in 2-3 hours from a little mom and pop camera shop close to where I used to live downtown. I don't know what process they use, however, as my Japanese is limited, and of all the staff who work there (3-4), only one seems to know anything about the film or darkroom stuff (and he's not usually there).