There is no realistic appraisal from the crowd. I ventured 450 $ from a gun show, but that's not what you desired. Ask 5000 $ then.
They have a limited appeal to the US crowd, and very little here. I got excited when I acquired mine too; " Wow, what if we find the bolt!"
Then it would have been worth 200 $. Just too rare; maybe if it was original, but a sporter is a tough sell in 6mm Navy. I can PM the name of a fellow who shoots one in BC, typically he has a pelithera of mausers, might get a good trade on.
Or take it south, it's likely ' not a firearm' in the US. Be easy to take it down I'd think.
I've a Krag too, and Canadian values on it are wacked. Typically they ask 700-800 $ then 7-8 "BTT with price drop" later they are sold for 1/2 of the asking price or unsold.