I was thinking something similar, start in Quito-Ecuador and finish in Cusco or Satiago, o... who knows??, as you can see I don't have a plan, yet.
Anyway, Audrey to enter Ecuador you need a visa, but it's very easy, so don't worry about it. In my plans are not hotels or motels, primarely tent, churchs, schools, etc.
Comentarios, sugerencias, preguntas, respuestas, etc etc, escibanme a mi mail con confianza.
PAblo