I do similar with grouping by kit, then I keep a running spreadsheet that is categorized then each category has the container(s) listed and justification as to why I have it and its priority if bugout/evac is needed.

So for example a plumbing kit, I'll list the container and its use and what level its at, this case pretty low.
A BOB/GHB, etc will be listed and at he highest priority.