1980 cb750 - Which carbs will work?

[wsbk750]

Hello everyone. I'm new to this site. Recently acquired a 1980 cb750, which needs what I believe to be the fuel rail for the carbs. Is it possible to find this part individually? Was also thinking of just buying a set of stock carbs and pulling the parts that I need, however I don't know which Model years will interchangeably fit for a 1980. Any help would be appreciated. Thank you!