Let's be honest. You will find a "perfect" setup
that will, after some time, become "less than
perfect" and in need of tweaking.
My world has gone from worm bags to bags of
worms in zip locks, to worms in 360 size boxes
and back again ... to now, all the gear I can carry
in a single Plano guide series box.
Any extra stuff goes in 360 boxes and stored
behind me in the milk crate.
Seriously. Fishing life on a kayak is an adventure
in finding the best and simplest, or most awesome
way to carry bait, rods, etc.