I found it when I was randomly browsing hentai releases… An untranslated tankoubon by Naomi Nekomata, it seems it is brand new !
Some of the stories inside the volume exist in translated versions (my guess : they’re taken from magazine prepublications), others are brand new.
This is just a suggestion and I can’t fund it, but well, if YOU are into commissioning for hentai translations, just take it as a possible suggestion, huh ?
Naomi Nekomata, In Nyanko
THE HENTAIRULES GIGATORRENT
to grab the file you want. You can just pick the stuff you need, it's quick and easy