Fork Seals for a 1980 kz 1000

I am trying to find fork seals for a 1980 kz 1000 shaft drive, and the parts unlimited book shows 5 different model designations (kz1000 a,b,c,d,e) and the part numbers are all different. all i know about the bike is it's a 1980 and shaft driven...does anyone know which designation that would be?

The shaft is a KZ1000E. Has a much better front fork setup, larger diameter than other KZ1000s.

thanks a lot man...appreciate the help