I love mine. I'm amazed that they discontinued it. You've probably guessed that you can have it when they pry it from my cold dead hands. Or course you will have to get in a bidding war with all that others that lust after it.
Good luck trying to find one.
OTOH, if its just the edge that is worn out, maybe a machine shop can re-edge it.
Years ago I had several double bevel ones made from 375" x 1.5" steel bar stock at the local Vocational High School students, 18" and 48". I then added sandpaper the the bottom surface.
They could also be made from "L" channel stock.