(This is a re-post of my comment into a January 2023 thread that might not get found by people in search of help on this topic)
I needed to have an old (1972-ish) 10 inch diameter sports-racer steering wheel re-covered because of seams separating. I got referred to Chris Scow @
http://leatherwheels.com/contact.htm
Chris did a very nice job putting a new leather cover on (with a stitched-in 12 o'clock marker). His turn-around time (about 1 week) and price were both very reasonable.
Lee