I am looking for a used Bowyers Edge. If you have one and would like to part wit it, let me know.

have you tried bowyersedge.com?

I tried to buy one a year or so ago never got a response.
Finally made one similar to it.

I have one that I never finished and smoothed to fit my hand.  I have not used it in 13 years...if interested PM me and make an offer plus shipping.