Great trip report. You were able to capture the mundane and the excitement very well. The patience needed to take this kind of adventure is just as much a factor as cost and physical capabilities and it shows through your report. You dont mention much about the demographics of the group..im curious about age range and relationships..eg families couples singles of the group and as you mention im sure well traveled and lots of the last continent travelers. It is clear you were pleased with the experience and you give any of us considering this experience a lot to think about.