Update:
I just went over all my gear and actually packed in the bags in a dry run. Not counting food, fuel, and water, it looks like I will wind up with a bar bag weighing about 3 pounds, a backpack weighing about 3 pounds, a drybag weighing 4.5 pounds, and a pair of trail shoes at 1 lb 2 oz. I am likely to wear the back pack, bungee the dry bag on one side, and bungee the shoes on top or the other side. I can bungee the backpack on the other side if I don't want to wear it or am concerned about balancing the load, but it felt like so little gear that I doubt that balance will be an issue.

The detailed spreadsheet is available from this link in anyone is interested.