I nominate War Journal: Triglavian Collective by @Aria_Jenneth for category 4, if she does not object.
I did a rough word count and it should be well under 15,000 words, just over 9,000, quotes not included.
I’d also like to nominate A Diver’s Notes on the Abyss, but I think that is not possible as it is still a work in progress.