Need help on price check. Beretta 687 eell x2

Hi all,
I am new to this site and need some help on a real world worth of a matched pair of Beretta 687 eell diamond pigeon 12 gauge field skeet guns. I purchased these at an auction, and can document that they were custom made for a former Worldcom bigwig. They are consecutive serial numbered, marked gun 1 and 2, have the english stock and are signed by the engraver. Wood is absolutely beautiful. For some reason both guns have 28" barrels, and they are in the Beretta double case. These guns are new and are 98%. Thanks for your time, and any help would be appreciated.