Mine was a Delux. Charles1930-31 Roadster had two very different irons. The "Standard" used a tubular steel style which was a design (NOT FIT) carryover from 1926-1929. The "Deluxe" (which was a factory 1-1/2" chop windshield) used a flat iron design similar to the 1932.
As Dave noted, it would require major modifications to change a 1930-31 to 1932.
Charles, if your Model A was a true original 1931 "standard", that is one of the rarest, as almost all 1931 roadsters were deluxe, most "standards" were 1930.