This gets a little more complex than you think. From what I gathered they have found tools in original crafstmen boxes, whether gunsmith or carpenter that thye don not the use of. One set of tools I now use quite a bit are hacksaw blades, broken and then ground into scrapers of various shapes. Good old HS steel. I have a 1/4 wood chisel that has built a lot of guns. A new tool I picked up that I use is a dowel flush cut saw from Stanley. Ground off its front edge for barrel inletting. Depends a lot on wheter you want to build from a blank with ramrod channel and barrel inlet by someone else or from absolute scratch. I use Surfoam rasps, the round one especially. Some will like them some will detest them. I also get quite a few used up chain saw files, (I burn a lot of firewood) They can be made into very small chisels (use them quite a bit). Also could be made into gravers? (I do not give advice on engraving nor should I). Tools get to be personal and are as much of the learning experience as the building. Stronly concur on good vench and vice systems.
DP
