Have you considered using Garolite (G-10) instead?
https://www.professionalplastics.com/G10FR4SHEET
Incorporating the klicky is on the list
I was also thinking about using the clog sensor, something like - GitHub - markniu/Laser-Filament-Motion-Sensor: Independent laser motion sensor to sense filament clog or runout
This hole thing is snowballing into a next level single extruder that snapmaker never produced
Especially if I can incorporate 3D Chameleon into this…