A thought:
in making the gas processor? with the ..led's and mesh for the electron extraction, might it be useful to look at existing airflow meters as something already available in a common inlet duct sizing, which also has a s/s mesh that could be used at the electron gathering part ofthe system? its possible by making a series of led holder that can be secured to the airflow meter body. On the air flow meter bodies that use the hotwire - that assembly can be removed in its entirety. That might be a simple place to start? What Im unsure about, by looking at the pictures of stans gas processor and also by looking at H20Powers manufactured GP is where does the exciter coil/plates go? just a thought.