Thanks! I am not one for delayed gratification, so I went to The Lamplighter this morning when they opened :-) Parking was not a problem, and there was no line at the shop. You are right that the woman is no-nonsense, but she was tickled to hear that I had found her family-owned shop through an online decorating forum. We played around with several options and ultimately went with a slightly smaller harp and slightly larger shade in an oiled paper material with a cute fleur-de-lis finial (see pic). And the good news is, it was already wired for a three-way bulb! That said, not a lot of reading happens in that seat on the couch, because the dog generally claims it. I realize she looks small in the original photo, but she is actually a very loud 50-lb. coonhound. Thanks again for the help!

At that point, with a drywall return, mounting inside the drywall jamb is totally fine in my opinion. Just be smart and pre-drill all your holes and hold your brackets off the corners a bit so as to not twist the corner beads.

The glass and metal lamp shade is a huge part of the value of that style lamp -- and you don't want to just "toss" it. It likely would sell on line -- Facebook Marketplace or Craigs List or Ebay, etc. -- or even a yard sale. If you are not interested in doing that, then, at the very least, donate it to a Habitat for Humanity Restore Store or a charity run thrift store near you that supports a cause in which you believe. IF you want a lamp upgrade, buy a new lamp -- a tall thin metal or wood one with a medium to large white shade. You might even find one you like at Habitat for Humanity Restore Store if you go by to donate the one you have.

For the first, I would probably do a burlap drum shade (the shape reminds me of a mid-century lamp we had when I was a kid that had that sort of shade). The second one is so tiny. It needs a clip-on shade. I think I would do a tapered shade. I could see black or white. I think it would look cute with a patterned shade, too, but that might take away from the base. I'd look to your decor for guidance on color.