That's not a bad price after checking the websites of a few of the "usual suspect" distributors. Especially when you add the shipping charges, and consider many of them don't even have the K-31 rifles anymore.
But now, make sure you get a copy of your license to all the wholesale distributors, and get on their email and mailing lists. That can save you a few bucks on some of the more common C&R firearms available.
Oh, and start looking at bigger safes. It's only just begun!!!