I have no clue who's parts they are using. Just going from their pictures. Here is what I see in the photos. Front sight is the same shape as a early Uberti. Same front sight that makes it easy way to identify Uberti parts guns built at USPFA and USFA. Front sight is a narrow and tapered BP type that should be mated to a V notch rear. The frame pictured has a square notch rear sight. The front sight is not the correct height for a 38 Special by comparison to any other SAA. So "other than the front sight" covers a lot of things wrong with this gun/production IMO besides "just the front sight". When I see a front sight and then a caliber roll mark that looks suspiciously like a Uberti roll mark and not anything similar to their single line barrel address I wonder where the barrel came from. Once I start wondering who made the barrel and in what country I start wondering what was made in the USA (not that it matters). But I already own Uberti and Pietta guns. None of them cost me $1500.
"Under the blue dome" was a complete sham first time around built on Uberti parts. They did end up building some really nice guns. Some of the best SAA ever made I think. But they didn't start out building some of the best they started out building fancy Ubertis at inflated prices based on a fabricated story. I have no doubt they were the best Ubertis ever built but still just a Uberti.
So..call me cynical if you like but I'll believe it (high quality SAA built 100% in the USA) when I see a Standard SAA at my local dealer.
I saw the front sight, and then .. what you said.