What piques my curiosity is why the store owner was not willing to let you converse with the seller. The only reason that rises in my suspicious mind is that they did not pay a premium price for the gun and don't want the seller to know what they charged you.
I could be wrong, I thought that I was wrong once before but I was mistaken.
By any chance are you willing to share what the dealer asked? Many of us like to keep up with current rates......
I get that the gun was still consigned and the owner might be persuaded to pull it for a private sale if he could communicate with a buyer. Seller may not have wanted others to know he had weapons at home. Several reasons exist to keep things private, not the least of which might be a divorcing wife picking up the phone.
I do not mind sharing what I paid. I think I did pretty well considering, what I have seen RM'S go for on Gunbroker, and at Rock Island Auction. A pair of consecutive registered numbers from the Butte, MT. 19 5" guns, sold in excess of 15K. I paid $4700 out the door.
Based on my little knowledge of this subject, I would say that you did very well for this gun with its attached provenance....
Is the gun shop going out of business or sold to new owners that will keep the business going???