If I had that stuff, I'd just HAVE to buy a black powder double in that guage (what guage is it anyway?) so I could use the tools to load for it.
I've built guns up from a neat barrel I got as part of a trade. Bought guns to shoot shells I got in a garage sale. You know the syndrome......
Another good forum to ask about this kind of stuff is the double gun forum on
www.doublegunshop.com/BBS Lots of old shotgun nuts over there, and some of them collect reloading tools.