The gear is now back in the Think Tank Airport Essentials backpack. This bag is not something I hike around with but instead is a storage and transport bag. I put what I'm going to carry around either in a smaller bag or on a strap and in pockets.
This setup weighs 13.8 pounds.
[UPDATE: I'm thinking of adding an EOS R10 body to the kit for use with the 100-400mm lens. The camera would stay attached to the lens and take up the space where the 85mm hood currently is.]