I have a Pedersoli Kodiak Express double rifle in .58 cal. I also have the optional 12ga barrel set that is matched to the gun. I tend to keep things when I get them. But, I have been drooling over the Safari in .72. I really don't keep up with used gun prices, so if someone could tell me what I could expect to get for the .58 w/the extra 12ga barrels I would appreciate it.