While the rifle in the OP is not your typical bubba'd chopped stock conversion, it is not anywhere in the same league as the rifles offhand posted and is closer to the former than the latter, imo.
I think this kind of custom job is a better candidate for the auction circuit (RIA, Morphy's) than the LGS used gun rack.
I doubt RIA or Morphy's would want anything to do with the OP's rifle.
This isn't a custom job. Look at Offhands rifles for examples of sporterized milsurps that have had enough work done to fall into the custom category. Those rifles have had literally thousands of dollars of work done to them by a gunsmith or someone with that level of skill.
The OP's rifle is just a rebarreled milsurp that someone dropped into a nicely figured but basic stock and added some minor bolt ons.
I have seen a ton of these military actions dropped into those squared off aftermarket stocks with the 2x4 forearm..I dunno why that particular cut seems to be so popular for sporterizing military rifles but they feel like i'm carrying a piece of lumber.
As soon as I see that stripper cut on the side of the receiver I tend to lose interest quickly unless its something particularly well done like Offhands rifles. At the level of quality that Offhands rifles show, I have confidence that someone was involved who knew what they were doing. That isn't the case with most sporterized milsurps that could have been done by anybody with a vice, some tools, and the inclination.
There always are seven or eight of these rifles at LGS's in town, a decently sporterized action dropped into a figured stock with a turned bolt, and they all sit at $600 and move at $400, if that helps. I personally wouldn't be interested in the OP's gun for anything over $350 and at that price only because I know i'd at least break even by parting it out.