I still have an early 1990’s vintage IBM Selectric typewriter in my library at work. We used to use it to type call numbers on the small adhesive stickers. We had someone come in an ask specifically to use a typewriter last year for the first in years. He typed out an obituary for his spouse. I have two more on a shelf in reserve.
How are you fixed for ribbon? In the early ‘80s, the lab I worked in used a mylar(?) ribbon in our Selectric. Use once only, and the struck letters were clearly visible on the ribbon. Ribbon had to be secured when not in use, and disposed of “properly” when used up.