So I stupidly sold a piece of an artifact that is used to combine into a staff. I cant buy it back because the vendor is no longer living (Don't ask). Apparently its a pretty good staff but I really don't feel like loading into a save several hours back. So if anyone could do me a big favor and help me recover this stupid shaft, it'd be much appreciated.

As for how you could help. I just plan on loading into an older save, give the missing artifact and then create a new session with my newest save and have you give me the artifact there.