Two of my friends and I are planning a 5 month backpacking trip through South and North America.

We would start our trip in Brazil, heading down to Argentina and then back up through Chile followed by 3 months in the states. We have it all planned on the money and travel side and a good idea of a route and time it would take to travel to each place.

We've all had some experience hinking, DofE and a few nights hiking etc. But this would be the largest thing any of us have done by an absolute mile!

What im asking is do you think this would be too much for a few novice travellers??? and if so what would be a good starting point?