I could see 3.5k as an easy bill for the job depending on who did the work. But resale will never recover more than a third of that much money. Just like high ribs on o/u may cost a grand to add the next fellow might see it as worth next to nothing to him. Big beaver tails only are attractive to male beavers to me.
I would expect that stock blank could be found for 350-500 depending on where you shop. The checkering job you could find a price for on several sites of well known checkers, but call it 500 at least. The for end had to take a lot of fitting as I don't recognize that style as one of the off the shelf semi inlet patterns. For ends take as much time to inlet as butt stocks. More if done well. I'd expect the butt stock and for end to cost 2500 plus, perhaps well more than 3000 by a top name stocker. You can find some stock makers who will do the job for less but you get what you pay for.
I know some one will tell you they can get it done for 1500, blank included but when I ask for names and delivery dates the stock maker always seems to be not taking new jobs or have multiple years of backlogs.
That for end looks like something a Sporting Clays or Trap shooter would think was a great improvement over the original splinter. If the owner was happy with the job and the gun nobody else's vote matters until it come time for him to sell it.
