Long shot, but I'm guessing you've already tried the email and phone here?
https://bendor.com.au/contact.html
On a slightly related topic, I got hold of someone associated with Brown Bag Software, makers of the old DOS "PowerMenu" and got the following response:
"I own the rights and source code for Powermenu.
The question is whether or not I can find it and what format it is in."
Unfortunately he, or his other contact no longer had the source code.
https://bendor.com.au/contact.html
On a slightly related topic, I got hold of someone associated with Brown Bag Software, makers of the old DOS "PowerMenu" and got the following response:
"I own the rights and source code for Powermenu.
The question is whether or not I can find it and what format it is in."
Unfortunately he, or his other contact no longer had the source code.