I think this route may be available?? I see Marble cataloged a W-13 tang sight in my 1940's Stoeger's catalogs. Ebay even has one listed. The takedown fit would need to be snug probably.....Even a tang sight set up would have been more interesting.
I would probably skip the marbles/lyman sights if newer manufacture.
I would recommend another brand but the name escapes me right now.
you could probably drill/tap and file a sight about as good as the new lyman's from scratch with a hand drill and a reloading press for tools.