You noticed! This pen was part of a package I bought on IAP that had several (not advertised) missing parts, this one was missing the clip bushing that held the finial. I was happy to see it go so I could trash the tacky clip. Anyway, these things are so big no one would carry it.
I've seen several offers on IAP from blankmakers offering spalted red oak, one was from Arkansas. I don't know if they cut on the 60* diagonal or not. I cut no other way.