This is not for everyone and certainly not for short hikes like the T-box. However, if you are going to do long hikes with a boat and gear the Quickpacker is the ticket!
It is a take-a-part frame pack that was designed for hunters, and I have used it to hike into rivers carrying a boat and gear for a few days. I generally use the slings from my pin kit and two 9' cam straps to fix the boat to the frame. You could also could also use your throwbag and shed a few ounces. A line from the upper grab loop to your hand is a nice addition if youre walking in irregular terrain. The whole system weights about 2 lbs and when you break it down it is about 4x4x14.
You can see pics and buy the pack at http://crosscreektrading.com/quikpacker.htm
. Make sure you set it up in you living room a couple of times before you get into the woods. It takes a few minutes to set it up the first few times, but after that it is pretty easy.
Have a good trip and write if you have any questions.