That's pretty cool Comfy. I haven't seen that anywhere.
Jeepster,
Unfortunately, I don't know the answers to your question. I would guess the inductors are not needed with such a high PWM as the Nlite, but that is just a guess. I was planning on leaving them in place at first to see what happens.
I haven't really thought it through yet as far as how to control the Attiny. I was thinking of trying to use a normal reverse clickie kind of switch that connected between battery positive and the VCC pin on the Attiny. Wouldn't need to be a high amperage switch since it would only drive the mcu and the PWM signal that the MCU outputs.
EDIT: Post 14 for the following thread has a Attiny wiring schematic. You can see power is also applied to pin 7 for voltage monitoring. I don't know if it has to get power, but it would be easy to duplicate the ciruit of the Nanjg 105C so that you have low voltage protection.