I've asked this question in other threads with no success

[IrishAyes]

But hope maybe someone here will know where I can find a practical, economical way to build a solar powered incinerator toilet (Incinolets cost in the thousands), mostly for disaster preparedness. I spent days searching the internet w/o any luck. I'm well versed in composting toilets but want something that would be easier for a little old lady to maintain if that's what I am when and if I need it. I no longer live in the outback but retired to a tiny MidWest town with very few restrictions, I guess partly because most lots are a quarter acre. To many from more congested areas that qualifies as 'country' from what I hear.