The numbers match on all the parts and the address is correct per the book.
I'm not so worried about the what's it worth to me question, I don't believe the fellow is trying to get the best of me or anything, heck I would have been all over it like a cat on a junebug already if I hadn't been offered it 45minutes after I had to cut the IRS a check. The value question is more for a general selling price in case things change in the future, stuff happens sometimes, like Jr going to college or a family member getting ill. I will certainly shoot the dang thing if I end up with it, but I think a rifle like this has the potential to be an investment as well as a shooter.
