The first time I did the George was via the DePas in 2008, we used Gilles Porlier who at that time basically ran the town, he was difficult to deal with but but did arrange a shuttle for us. This may be the name you saw in previous reports, I just Googled him and apparently he left town in 2015 (
https://www.cbc.ca/news/canada/montreal ... -1.2895906).
In 2010 I paddled the George again but flew in to the headwaters using Air Saguenay, they picked us up at the train station and took us to their float base. Unfortunately Air Saguenay went bankrupt in 2019 following a fatal crash. The assets were bought by Air Tunilik (
https://airtunilik.com/en/hydrobases/ait) who claim that they are operating out of that base. Maybe they could help?
My third trip was in 2018 but for that solo trip I started from the Smallwood Reservoir and never went near Schefferville.
The only other suggestion I have would be the Northern Store, they tend to know everyone in town, probably have a big truck and might be able to point you in the right direction.
Do you have arrangements in Kangiqsualujjuaq to take care of your boats/gear? For those first two trips I used Jean-Guy St-Aubin, he has had health issues in recent years so I don't think he is available but his son Felix St-Aubin helped out for my 2018 trip, unfortunately I have no contact information for him.
Having now paddled the upper George twice I'm like to go back at some point and do the DePas route again. While the Upper George is really very nice it's hard to beat the lower river below Indian House Lake (and even that 100+km part is enjoyable).