Fae Comiskey

I agree with those saying there needs to be a kit of some sort.
Even better, a lot of homes already have an existing fireplace and chimney.  If one could design a modular Rocket heater with the option to fit nicely into an existing fireplace, and then route the air through the thermal mass, etc. and end up venting out the existing chimney, I think a lot of people would be open to it.  I definitely would.  We rent, so we can't do any construction to our place, but if a modular kit with gravel filler was available I would buy it and stick it in the fireplace that we currently don't use.

Also:  videos need a more stunning cover image, and titles for videos need to be more click-baity.  But really it comes down to most people are not going to haul mud or do construction for a week to accomplish this, and if they are DIYing it they are putting a lot of faith in themselves that it's not going to burn their house down.  If they are new to the idea they don't have that faith.  If they can purchase the parts from an official company and even have a potential install offered, I imagine that would help with the trust issue.
Perhaps we need a "Why Rocket Mass Heaters are SAFER than traditional Fireplaces" video...

My cousin is an English/Japanese translator/teacher born in the US, and had been living in Japan for decades.. I don't know that he is a horticultural specialist, but if it comes down to it and you would like me to reach out to him let me know!

Fae

Opossums are supposed to be great for keeping tick populations down. The walk around, they get covered in ticks, and then they eat them. Repeat.
How one makes their property appealing to opossums while keeping their chickens safe, I'm not sure. But.. interesting to think about.

Also Lymes is an incredibly sneaky and misunderstood disease.
The guidelines by which doctors diagnose lyme vary by location and infections in your area, so people can travel, get it, go back home, and be told they don't have it.
Changing weather patterns are seeing the spreading of insects not typical to certain areas. And travelers can bring insects home in their belongings.
There are also secondary and similar infections to worry about that aren't specifically lyme.
So it's my opinion that any and all prevention that can be put in place is worth the effort.
If that includes digging a moat so be it.
Moats are super cool anyways.

Is it possible that you could have an autoimmune condition? I have read that people with autoimmune disorders should limit their kefir intake becauses certain strains of the pathogens can make their condition worse.. idk.. ony thing I can think of.
Sorry you are having such a hard time, my last couple of years have been awful health-wise so I can relate!

Sending good particles your way! ~*~*~*~*~