I'll humbly submit that the guns in the $1500-$2000 price range aren't more gun than a Nitro Special, Western Arms Long Range Double or an early 311.
A double isn't for everybody. Spend more money when you decide a double is for you. One of the above guns will teach you pretty quickly how a double will work for you. They sell readily, and make good backup, loaners, and rainy day guns. If the chokes are opened, steel shot is no big deal, and they handle hot (pressure) cheap promo loads just fine. At $500, you don't need to worry about modifications you might like to make affecting value down the road. Or, whether the gun was made out of parts from two guns.
Mr. Cash, with all due respect, I've never seen a BSS in 12 gauge sell for over $1000, even when the numbers match. They are a mass production, polyureathane, roll pin and stamping gun, not much, if at all, elevated beyond the guns I listed above. Gun List has a few every month at around your price, or, less, and I'd guess there wouldn't be the question about what happened to the original barrels. The asking price on the 20s seem to be more, but, they sit longer, too.
It would be nice if the newbie could buy a double that it would be possible to get his money out of down the road.
I don't think your gun qualifies. I'm sure it looks and shoots nice, but, it's always going to be a tough sell.
Best,
Ted