They're telling him 3-4 months.  Not sure about rehab. It took us 2 days to get out from Glenn.  We were travelling pretty heavy up until then.  We tend to bring a lot of gear, and we do two trips on every portage.  Our food pack was still pretty heavy at that point, since the fishing was so good we had been eating a lot of fish meals.  We had a nice campfire that night, burning all un-needed food items etc.  I still had to do 3-4 trips on each portage to get our gear out,  but we made it.