G'day vint-mow
I am astounded to the commitment shown on you restoring your KX-D.
It is a credit, not just to you - but also us remembering the make.

Putting the legend aside, I did write about the KX-B's association with Pope.
It's pretty clear the KX-D catcher was Pope inspired.
Maybe it was made by Pope:-
https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=showflat&Number=59826

[Linked Image]

It may be that a back-up plan would be the modifying of a second-hand
Pope catcher. They come up at auction from time-to-time.

I should add that the SC catchers were optional.
My opinion is that this must mean ... rare. The SC distribution
network was primarily agricultural. Most buyers would not have seen a need
for a catcher. They just wanted a fire break around the farmhouse.

Hope this helps.
-------------------------
Jack