Who said it has to be OEM?
I use a very nice dirt cheap 22"-23" wide-screen TV somebody was selling on Facebook Marketplace for $15 bucks!
Ripped the plastics off, and attached the mounting ears, shoved it in...looks brand new!
You can do the same thing for the bottom touchscreen monitor.
All you have to do is cut the old TS off the bad LCD and stick it on the brand new TV.
The only requirement of course is the same size....use the old enclosures and mounts.
I was able to pick up a roll of two-sided adhesive rubber online about 3/16 thick and a quarter inch wide.
You also need a roll of acetate cloth tape to hold the TS from sliding down.
It's kind of like hockey stick tape, but stiffer with better adhesive.
If you can't find that, I've seen monitors with that shiny aluminum furnace duct tape.
TV's have their own power supply's, just plug in the cord to a power strip.