If the header tubes are the same diameter, and bent the same, the hanging of the mufflers off of the rear frame, would not be too difficult. However, the header tubes must be the same diameter, and bent/shaped nearly identical to fit around the engine (a good chance they are, but you won't know until you have them in hand, next to your bike, so you can do a fitment test...). Best of luck. Cheers!
1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII