In Rocky Point the cost are rising, but if pressed, I could live on $500.00 a month. $1,000.00 if not. We are of course 1 hour from the border if there is a medical emergency. Many resort towns now have medical facilities with Lake View Group which takes Medicare Advantage in cases of emergency. There's an abundance to take you to the border where another will pick you up. Ajo, 2 hours away has a clinic that accepts all insurances if you don't trust Mexican doctors. No reason not to.
The American Legion here does a mail run to Lukeville PO once a week. You can get mail, prescriptions and Amazon pretty cheaply.
Super Walmart is being built, done by Thanksgiving I think, Sam's already here.
My Mexican car insurance is $100.00 a year. I cancelled my Arizona registration and insurance. If I need to go to the VA for annual check ups, there's two shuttles that come and go daily. Generally though VA is like others, telemedicine or calls.
I ride my bike from one end of town to the other and generally get it all done. Spend maybe $20.00 in gas a month.
Plenty of good doctors and dentists that are cheap. I'm 67, in great health but I figure that won't last. I'm in for the long haul. Been here 10 years.