I have packed out bull elk by myself twice. Each time was a 1-2 mile pack. Just packed out each of the four quarters, the blackstrap, what meat I could whittle off the neck, and head. Did the first time when I was 46, second time when I was 48.
Neither time was easy, but because of the terrain, the second time was easier.
When I got home after the first elk I packed out, I didn’t want to move for almost 2 days.
If I were you, I would bring as many young folks as you could.