Hey you three,
I'm in and following along.
This is being posted "real time" from the road, correct?
I traveled through Chile and Argentina about 10 years ago. It was fantastic! Lots of wide open spaces. Nice people. Fun food. Easy traveling. Lots of places I went there that made me think, "This is what the American West must have been like 100 years ago". Frontier!
You'll see lots of places that will make you want to tear up your return ticket.
Have a blast and travel safely. Enjoy the mate!