I wouldn't really consider that real actual data. You only listed three completed transactions, and I know there have been gunbroker auctions in the past that were quite fake (I remember when KSGs came out and one of the first couple sold for 10 grand, like that really happened). If people are going to try and sell their five sevens for 2 grand, more power to them, but I get the feeling they're going to be waiting awhile for those guns to sell.
It's actual data maybe not correct but actual, if you would like we can assume that 50% of the auctions that are in progress will fall apart (very high margin). Even at that the amount of bidding between $1,500-$2,000 shows a significant upward pressure on prices approaching $2,000. I know for a fact two have sold above $2,000 funds have cleared etc... I also know that several have sold between $1700-$2000 and not been listed again, that's a positive indication of a completed sale in my eyes (not conclusive though). Unless everyone attempts to sell at once I would say you could get close to 2k in less than five days.
