First, I'm no expert on these at all. I have an RC and other than researching that a bit, that's about all I know other than what I see them selling for.
The metal condition looks like a lot of the bring backs I've seen. Not sure why, whether it was simply hard use during the war or poor storage all these years so that isn't always an issue with the price.
Part of the attraction of the RC for me is that I'm not a hard core collector. I like nice looking rifles rather than historical wall hangers that are too risky to shoot for harming their value in some way. So I don't see paying a huge premium for what to me looks like an abused rifle. Just my personal preference. If I had a lot more money than I do, I might look at the historical pieces more closely.
From the pics, I'd say it's worth his asking price unless the bore is shot out.