I'll be officially old this month at 57 and as an antique Alaskan that generally travels alone and carries all the gear...I was thinking recently on ways to improve portaging a canoe for next summer. I can't use a wheeled device like a canoe cart where I go on the Kenai National Wildlife Refuge so thats out. Now I looked for an old used Knupac, external frame backpack that distributes some of the weight of the canoe onto your hips, but I can't find one anywhere. So I'm thinking of making one to try out of an external frame pack myself. Have any of you guys ever tried something like this and what did you think about it ?