If I was interested in buying (investing) in this uncommon rifle, I would probably pass it up at a higher price because I like rifles with a good bore. I would be more interested in it if it had a better bore, even if it had been relined well with a new bore. It might drop the collector's value some but it would raise its marketability with a re-lined bore.

Just my opinion. Good luck making the right choice. You are a temporary owner of this and improving it in the right way might be a good thing!