Thanks Tom.

Having read a little:
Lots of good information there and well written summary.
Tells a good story. I will have to read the individual day reports.

Their trip metrics were:
600 miles in 24 days = 25 miles per day
50 pounds of food = about 2 pounds per day
You might also say 1 pound per day plus 1 pound per 25 miles.
Their nonfood gear was 7 pounds. I think that includes everything.

So they did 600 miles in 25 days with about 60 pounds, skin out.
So in theory 900 miles in 40 days with 90 pounds might be doable.
Perhaps even 1000 miles in 50 days with 100 pounds. By somebody.
Depends alot on terrain of course, and climate.

Worth noting they only burned 2 pounds per day though.
I will read up a little more on their diet, and weight loss.