ri-Star sells SA guns in the price range.
Has a Browning Gold, $600, used. A couple of Verona field guns for $400, $250. A Beretta 390 Gold, $550, very good deal; you better buy it before I do!
I'm not impressed at all with those other shotguns, but that $600 Browning Gold looks like it is brand new. It looks downright gorgeous from the photos, and would be a real good buy.
The bluing on the shotgun still looks perfect:
And the wood on the stock is absolutely beautiful:
A gunsmith could easily shorten that gun's wood stock, and put any recoil pad that you wanted on it.