I own 2 45 acp 1911's.
Seems to me, I "need" a modern $&W governor.
What say you?
Hmmm - "Black Powder Governor" has a nice ring to it. Anyone tried?
.
I respond, based on "What say you?". I say
thou shalt not reward S&W for using time, money, steel and oxygen that could have been better used on virtually any other firearm.
The Taurus Judge arose from the unique regulatory and crime environment in Brazil, where a smoothbore pistol in .410 was in fact about the only viable way to address the epidemic of car jackings, including of many members of the judiciary, plaguing many cities. To make the concept fly in the US regulatory environment, the barrel needed to be rifled. So, now we have a ridiculously large pistol that patterns poorly with shot, and is inaccurate with 45LC. It is, in effect, the worst of both worlds. To add insult to injury, Smith & Wesson copied it.
Nevertheless, I urge you to do exactly what you want with your money. However, I like your style, and have the following alternative to offer: a 45 Black Powder Magnum. The Uberti Walker, with a cartridge conversion cylinder reamed to 460 S&W, loaded with black powder. 250 grs over 50 grs FFFg, at 1,025 fps. 180 grs at 1,200 fps. It's huge. It's devastating. It runs on Holy Black, and you can load a 45 cal shot cup should you so desire.
Whatever you do, enjoy!