If you can sell some units good luck to you.

But the first turbine I bought is still on the original glow plug after
3 years flying & lots & lots of flights.

At just $5 a glow plug this idea makes no sense to me.

It sounds like you have a more expensive, more complicated replacement
for something that works perfectly anyway.

Like I said, good luck, but I will not be lining up to buy one. - John.