The idea of a SAA reverse conversion, was for Countries far more Draconian then even your Calforniastan
places like, not so great , Britain ( as far as guns are concerned ) .... where C&B guns are regulated legal ....That is yeah, you can own one, but it must be locked away a some gun club you are a member of.
A few of these "things" have been seen here in the states ( I saw one on consignment in a gun store ). perhaps Traditions may still have them and maybe Dixie still has some new old stock
They did not sell well here, The one I saw years ago had no takers ..... don't dish Pietta ( just because they scratched a Draconian itch )
Uberti made them also in 90's ....neither Pietta or Uberti make them anymore. (parts then, are in other peoples guns )
.... Even Ruger's "Old Army" was akin and also no longer made.
To my knowledge Howell (now Taylors ) did not made a cylinder for them (Pietta & Uberti)
He did make them for the Ruger however ...
For what they were .... there was a market , in fact Ruger's did sell rather well.