Sounds like a great deal, on a gun that you might not see again for a while. I would expect to see a $700 price tag, if anything like that was to miraculously appear in this area. The last K snub I saw locally was about a year ago. It was a 19-5, in 90+% condition. $600 asking. Ended up going home with me at $540 OTD. I thought I made a pretty good deal.
You're in the same ball park, a year later, with prices climbing, steadily.
Buy it now! Someone here will take it off your hands at better than that price, if you change your mind later, which you won't, 'cause the subs are a hoot to shoot!
George