I would like to throw in a suggestion, though do understand it is probably to late to add it in.
Things that go squeek in the night is another d6 ttrpg with a narrative focus. It provided some of the kit in the book by having sets of pre-rolled dice to flip to at the bottom margins of the page. Having something like that in Why We Fight would cut another hurdle to playing it.
It would be one less item to buy, scrounge, etc.