FINAL FITTING follows Mr. Arabpour, the master tailor and craftsman, and the proprietor of the most famous tailor shop in Qom (Iran's most important religious center). A spry octogenarian, for the last several decades he has been the official tailor to the most important religious leaders of the country, starting with the late Ayatollah Khomeini to the current Supreme Leader, Ayatollah Khamenei, as well as for the former president, Mohammad Khatami. His international clientele include such prominent figures as Imam Musa Sadr of Lebanon.