I saw a couple of those at a gun show once about 10-12 years ago including a couple of miniature lever action rifles. Complete with the custom made ammo and a presentation box.
Price was something like $8,000 and up! But I gotta say, I really marveled at them. They were works of art.
My wife wanted one desperately for the 18 inch porcelain John Wayne doll she made. One of the lever action rifles was in perfect scale for him. Price for the rifle was $13,000 or there about.