I'd probably go the .22rf path.
Drill out the mess in the bbl and re-line.
Replace the cyl with a K22 cyl. Yes they are harder to find but still out there and kind of $$. But you don't have much in the gun anyway.
Either convert the current CF firing pin to a RF, or close up the CF system and install a K22 style FP.
...Oh,,and change the caliber marking,,completely repolish and engrave, maybe a touch of gold line inlay,,make Ivory or fancy Euro Walnut grips for it w/ checkering and use orig S&W early medallions too. Not too much to ask on a project is it?
$55 dollar project guns,,gotta love 'em,,,,I do!
That,,or convert to a 38spec 2".
A pre-war snub is pretty special.
Find a pre-war Target sight and make it a Target sighted P/War snub.
Can you tell I like projects.