wheels

hi,am looking for front &rear wheel sets for 78 kz400.drum both ends.been through ebay and lots there but not same year and most very ripe.I am pretty motivated to get them as they are last headache with getting bike going.question is which model year wheels fit?

www.kawasakiepc.com/SystemSearch_Frames....154&CFTOKEN=17394696
Kawasaki says very few are direct fitment. That's not to say that others can't be made to fit.
Maybe someone Knows if the 550 wheels is an easy swap?

thanks,whatever it takes to get it rolling.had this bike for long time,can't just keep cleaning &polishing.mine is also a C1 model.not much bling but the original tires still hava their hair.this problem is my own doing.tossed the spokes&rims during restore.still have original hubs.

.