There seems to be a whole range of issues, good and bad surrounding Huntertown. I'm glad you are the receiving end of the "good" ones Holtian.
I've built a couple rifle cans on a Form 1 Holtian. As I am sure you know, suppressors are not the most complicated things in the world, so as long as your serial numbered part doesn't get severely damaged/destroyed, the rest of the parts "could" be fairly easily and completely legally fabricated by a decent machinist with a lathe and/or a mill.
I own a small lathe I've used for my projects, but I am NOT what anyone would describe as an "expert machinist". My cans work plenty good enough though and I only have about $150 in metal +/- invested in them. Would I try and make some interior baffles for my Rugged Obsidian if I had to? Sure, I'd give it a whirl if I had to. Would it be as good/well machined as a factory part when I was finished? Well probably not, but I bet it would "work".
I agree on the Taurus issue too. The very first semi auto handgun I bought was a nickel plated Taurus PT99 (duplicate of a Beretta M92 but with fully adjustable sights). This was back in the mid/late 80's when Beretta had just modified the M92 (hammer drop safety and other small changes I think?) so they sold all of the classic model M92 tooling to Taurus.
Let me tell you, I have put thousands of rounds through that PT99, and it is still as tight as a drum and still is capable of shooting better than me regarding accuracy. It is essentially a Beretta M92 that I paid $350 NIB when the Berettas were selling for $500-$600. The gun magazine reviews of them in those days basically said the same thing "it's a Beretta with a Taurus name on it, for $300 less. I also owned one of Taurus's M66C (compensated) .357Mags with a 6" barrel (back when they were 6 shot, they are 7 now). I think I paid something like $260 for it brand new and that sucker also shot very accurately. I sold it a year or two after I bought it because I never used it and to this day, I regret getting rid of it. I sold it to one of my customers and when I see him he still jabs me how well that gun shoots and how many deer he's killed with it (*******). Yes, like any gun company, Taurus has had a few hiccups, but from what I have seen, they have stood behind their products 100% and have done everything they can to satisfy their customers.