Permanent Resident Health Insurance/Medivac Discussion

I see the discussion below about stand alone health insurance. I am hoping to learn (and potentially share) information specific to health insurance applicable to extranjeros with permanent resident status.

I have permanent resident status. I will soon no longer be able to say that I am "in my 60s".

I plan to soon be spending about six months per year in Mexico, likely two to four months at a time.

It seems to me that "traveller's" insurance would be prohibitively expensive, but that "resident" Mexican medical insurance might be a possibility. I am Canadian and will have my public health insurance when I am not in Mexico, so I would not need a "world travel" policy.

I am thinking that in addition to Mexican domestic medical insurance that it would be smart to have health emergency evacuation insurance. If I were to end up needing minor hospitalization in Mexico, that would be OK, but if I were to need serious medical care that would qualify for medical evacuation, I would probably prefer to have that covered and by someone who knows what they are doing.

Is there anyone in similar circumstances who has already worked out some, or all, of this for their own situation?