Hi Pat, I have found parts of fleetscale Yamato Musashi if you go to fleetscale and on the left corner there are a couple of scales seeing as you have a 1/96 kit you click on 1/96 it gives you a choice of parts as you want weapons, go to weapons and on the left it gives names of certain ships and boats look for IJN Yamato/Musashi and it has a list of parts.
I hope I have helped
Many thanks,Alfie