I don't know if this is a backcountry question, but I'm new so I'm posting here.

My question pretty much boils down to this: does it sound viable to travel through Central America (excl. Guatemala, Belize & Mexico, as I will already have covered them) and South America in the period of Juli 25 to December 20 on a budget of USD 11,000? I'm traveling as cheap as possible and I just want a general impression of the most important places.