1979 KZ650 Seat options?

Hey everyone! I'm in need of some help! So I'm trying to find a seat for my KZ650B, but I'm having some trouble. I'll only be using the pan in the end since I want to make it a brat seat, but I'm wondering what other models might be compatible (if any). Does anyone know if any other years, models, submodels, etc work the a 1979 650b?

Thanks in advance! Nic

From the cross-reference at Partzilla the 77-80 KZ650-B/C/F models had the same seat, but if possible, you should double-check the part numbers at Kawasaki.com for each model.