This discussion was very interesting to me, I'm not really a collector in the common use of the word but understand the nuances of collecting eg. originality etc.
If I had that kind of cash, which is never likely, I would look at the cost more in this way, how much would you need to spend just to get that engraving and stock in this day and age? Strictly a guess but upwards of $30,000 depending who did the work.
IMHO the barrels are free and you got a bargain. Very nice gun which one should be proud to own and shot.
Anyhow just an old mans take on guns in general, embellishment such as engraving and nice stock wood can be very costly. FWIW --- John