I'm very close to scheduling my VSG with Dr Lopez Corvala. I'd love to hear from those who did surgery in Mexico and went alone.
I've done surgery alone a couple of times in foreign countries. It's scary but if you do your research, work with an accredited and verified medical professional, and stay at a medical retreat that has great reviews (many do), then you should do fine.
I did it for the cost savings which were very substantial.
I have traveled within the USA by myself for surgery. It isn't easy but it is doable. One of the things that I like about surgery in Mx is that you aren't as isolated as I was. You have someone checking in on you every day. I was alone in a hotel by 10 nights.
I have also traveled through Mexico by car having spent a month there last year. I was not alone that time. And I had medical treatment in Merida. Not surgery, but treatment for a digestive disorder. I was extremely impressed with the hospital, physician, quality of care that I received, and the price. I paid $25 US for an hour with a gastroenterologist. That's more than my copay back home, and far less time than my gastro spends with me.