Let me preface this by mentioning that I'm 64 now and I have NO plans to bank fish any time soon. All of these comments are based on my previous bank fishing experiences from when I was 20 something to 40 something. IMO heavier jigs are unnecessary for bank fishing. More trouble than they are worth. I have a similar opinion on drop shot fishing from the bank, there may be certain situations where it is a viable option, but most of the time there are better options. Not a big fan of those pre-tied drop shot rigs.
As mentioned previously I think some top water old school Rapala bait would be in order. If you're fishing from the bank, something to fish slop might be in order, like a frog.
Back when I was a meat fishing bush hippie I had some very good days walking the bank and just throwing a spinner bait, going as parallel to the bank as I could. These days a chatter bait would be just as good. Maybe a buzz bait.
I think for bank fishing that there are other finesse jig heads that come through bank slop better than the Chompers heads you've chosen. Brewer slider heads come to mind.
The scale seems unnecessary to me, unless you are really planning on catching big fish to have something to brag about, I'd call that scale extra weight.
If you're carrying a couple of rods or more, having some system to bungee them together when you're moving from place to place is a good idea.
I'm not sure that you need the TRD baits unless you're going full on NED RIG. Those elaz-tech baits can be a pain to tx rig on jig heads. If you're staying with BPS products I think the BPS Stick-O and the Stick-O with the paddle tail are excellent baits. The BPS version of the trick worm isn't a bad bait.
There are a few items that I found necessary when I was bank fishing, foremost among them is a decent pair of hip waders. These make it easy to get off the bank a little bit and make the whole paralleling the bank thing easier. A decent pair of hiking boots and a water proof bag to keep them in is a good idea. Back in the day I frequently had to walk in half a mile or so (and walk back). The water proof bag is to leave the boots in on the bank while you're fishing. Don't try walking half a mile in hip waders - you'll get blisters all over your feet.
I'm aware that the conditions I faced bank fishing, i.e. ponds, small reservoirs, strip pits that I fished in central & western MO are different than what you might be facing in Washington. Maybe all of these comments are wrong - I don't know.