Alternator rotor

I am stripping my engine, which I got from a friend, the bike was knocked over last time it was on the road, I have found that the magnets on the rotor on the right hand side are damaged. I will need to replace it but it appears that different rotors were used on different years, my engine number is KZT30AE 019745 and the rotor has the number GP9313 can anyone tell me what one this is ,or if the magnets can be replaced.

Not sure but eBay has this
www.ebay.com/i/370787954425?chn=ps&norov...hEAQYBSABEgIR8vD_BwE

www.motorcyclepartselectricalignitionfor...1300/1300-rotor.html

There are plenty on eBay but the number stamped on the rotor is different also mine has the rivets showing on both sides my question was does anyone know if they are interchangeable rather than me buying one that doesn't work, they changed the part number after the A2.

My engine number is KZT 30AE 019745 which would make it one of the very last Carb models it would appear the ignition system was changed that year to a CDI which mine has with the 3 pick ups on the right hand side , is there a chance that it might be the same rotor as the fuel injected model?

Ive found out The Rotor Stamped GP9313 is the correct rotor for the Z1300 A4 and A5 , there is one stamped GP9109 which is for an earlier one and one stamped 9327 which is for the DFI, so I require a GP9313 as fitted to my engine.