Yes, on the warthog look...

but our yak would always loose any beauty contest. We are OK with that because we absolutely love our boat, regardless of the criticism...

Our fav backpacks are the British made Karrimor. Internal frame, rugged, mil grade, made for the boys in the field, with a brilliant zipper that changes their shape and capacity by 40 L or so. If we'll ever need them on a water trip with a lot of splashes, we'll stick in a SealLine ILBE and strap them on decks fully loaded. Depending on water and surf conditions, loading and unloading on the water can be funny. In heavy surf half of the boat can be filled with cold salty water before the zippers, or hatches, can be closed...

On our next paddling trip we'll have a rigid fiberglass tandem that is not large enough for all the gear we're taking...

Still analyzing options for the deck bags. As always, we'll take what we'll need to be independent for two weeks.
Unlike the OP, in spite of the relative remoteness of the area, we won't leave the boat in the bush. I wouldn't feel comfortable to leave the yak behind either.