This is a rough takedown of the knife, all screws, pins and washers accounted for. Below, you can see a scan that I then started to draw on top of. The screws and pins are simple enough that I don't feel the need to scan them into my drawings, as they can be measured very quickly and are not complex overall.
Here you can see how I've started my drawing; by creating a circle the same diameter as the pivot hole in the blade and centering them, I can then scale the image to match, meaning the rest of my drawings will be accurate to the original object.
And here is the beginning of the rest of the drawings.
Sorry for being late with this, I had really wanted to model the Sebenza. Maybe next time.