I needed a wall mount for my Rigid Cordless Circular Saw. I made one.
My Kobra S1 is smaller than my mount, so its halved and pegged/pitted to accommodate a small build volume.
I used ABS with 15% gyroid infill with 5 walls.
I did not glue it together. I just screwed it top the wall.

The plate is about 7 inches wide and 12 inches long.
The slot is about 7 1/2" long and 1 1/4 inches wide.

I'm happy with it and I hope you like it too.