I have 175 sloper cases which will take all of those items. I also have a racing problem/addictionSloper or "upright"?
I know I have gear sets and cranks. Probably have barrels and cylinders and might have 175 heads Bare or complete.
Do you just have empty cases or were all the internals junk or are you planning to upsize a CB160? The reason I ask is that 160 cases have to be modified to take 175 cylinders and shift drum. The gear sets drop straight in.