The 1200 was made from 1984 to 1987. Like Joe said, most parts are probably interchangeable. There are some websites that still cary OEM replacement parts for the 1200. What exactly are you looking for?
other than the f.i and its related parts all 1200 wing parts interchange handlebars changed from tube type handlebars ( '84 wings ) to individual bars ( '85 - '87 ), higher output stators on sei and ltd wings