I used Your Toolkit for an MSI laptop that I decided to run on the ZEN-kernel.
It couldn't finish the GPU installation without errors because it didn't detect and install all needed kernel-headers.
A suggestion from me would be to detect what kernels are currently installed and give the user the choice which kernel(s) to install headers for (?)
Otherwise a great tool and now my laptop works great with fully functioning sleep/hibernate and audio. Hybrid cards are known to be a real challenge to make work and Your script did a great job at that!
All the best,
Nikos