Going back to where this all started, I suspect a Parker Reproduction, that needed $1K worth of talented repair, might not be getting that repair. I further believe, in spite of at least one joker telling us that a repair like that is routine, it is not. One actual gunsmith has said he wouldn’t touch it.
If I was in that position, I might try to hunt down a second set of barrels before commissioning that drastic a repair. I can’t wrap my head around a far eastern copy of a long out of production American double being a sentimental thing, but, everybody is different. To me, the last collectible thing out of the far east was made during the Ming dynasty, and, I’m not interested in it, but, somebody is.
A far eastern copy/reproduction of an obsolete, American, production, consumer level boxlock, ain’t the Mona Lisa.
Best,
Ted