Well, here's a question for you regarding a company that makes guns, since this thread is talking about one company expanding their line, or wishing they would.
The question is, what does it take to make a successful gun company? Or more accurately, what does it take to make a good gun and a modern one at that?
The question going through my mind is, do you really need "gunsmiths" to do either of those things? I do think you have to have a certain corporate culture to produce a good product and that's not always a given. In fact, as was alluded to, sometimes it's lost after a takeover. These are problems that exist all around the world, too.
I'd suggest that you have to have a good design, which follows that you have to have a talented designer, which are few and far between, although amateurs with no engineering background are encouraged. Browning (no amateur) and Kalashnikov (no engineer) are names that come to mind but there are several others, some fairly well known, some forgotten. One object of the designer is to create a design that is easy enough to produce and without lots of handwork needed. That's why Colt dropped their DA revolvers.
Otherwise, a firearm is just a basic metal (and plastic) product that calls for some machining, perhaps some casting or forging. That's not to say it's a simple product, although there have been some very simple guns produced in my lifetime. Everything else is just marketing.
However, if what you want made, because you think it will sell, is merely a copy of a gun designed when Custer was still alive, that's another story. A neat trick, though, would be to come up with something that was merely inspired by something that old and I think that Ruger has done that better than any other company. Their line of single action revolvers and the Ruger No. 1 are the best examples. Not copies but clearly of a different age. The Ruger No. 3, however, was closer to what was being made and sold when my grandmother was born and you may note that hasn't been available for quite a while.
Was there ever a Ruger No. 2?