Safety hook and gutter guard for 3.9m telescopic ladder

Safety hook and gutter guard for 3.9m telescopic ladder. Fits either topmost section, or the third section from the top. This is approximately the 3D printed equivalent of this - https://www.bunnings.com.au/ladders-little-helper-safety-device_p0860244 combined with safety hooks. It's designed to latch over square gutters.It should fit this type of ladder: https://www.vetner.com.au/product/ladders/telescopic-and-stairway-step-ladders/telescopic-ladder-95m-3-9m-t1600e-150kg-rated/Uses a couple of M10 nuts and bolts to hold together.