I have an old (1886) '73 Winchester with a tang sight, I'm really not a fan. But I am a huge fan of receiver sights and as we age, aperture sights make more and more sense.
Drilling and tapping for them is not difficult and I did my 92 Rossi .44 Magnum very recently. I first put a cheap Williams (pictured) on it, but then found a Lyman 66 and swapped them out.
If I had my druthers, I'd mount one of the old Redfield's, but they're scarce and expensive.
To drill and tap all one needs is a drill press, a compound vise, the correct drill bit and tap, and patience.