Looks good in the charts, now, you need to consider unrest, minimal access to resources like food and water, and electricity/internet.
Usually there is a reason why poor countries are poor.
For example, El Salvador in Central America, has drug gangs running rampant.
Bolivia is a good option. There are some really nice places. Just watch out for the water. Take your own potabilization pills.
The Pacific looks ideal in the map, not sure what's going on there.