I would assume that they all will be auctioned on the CMP site and not sold directly. I would not attempt to guess what they may bring. I do know that CMP auctioned a pair of new H&R Garands in original factory boxs, serial numbers 5531539 & 5531060 (12/54), and the pair sold for $22,505.00. I guess the original boxes were probably worth $5,000 or more to a collector.
http://auction.odcmp.com/auctions/detail.asp?id=55
http://auction.odcmp.com/auctions/detail.asp?id=55