My experience in countries that are less "developed" is that you'll get any kind of medicine you may need if you're ready to pay the price for it. I'm sure he'll be fine.
Passport are simple to replace but Visas simply aren't replaced at all. He could get new Visas under no delay, unfortunately I don't think he has the right connections for that kind of "fast lane" service.
The bigger concern is the medicine. How does that work with prescription medicine outside the US?
The laptop is rather unique, so if someone pawned it you would think it could be hunted down.