If you retrofit your PR-49, consider making the chafe guard a minimum height up the side tubes to be 4.5-6″, which is from my experience the areas most prone to abuse when heavily loaded. I believe the length of the chafe guard is about 80″ by 10″. So, if you retrofit, i’d make it 12″ wide by…
https://forums.outdoorsdirectory.com/threads/alpacka-or-pr49-raft-for-a-caribou-hunt.134065/page-6

