I was browsing Nyaa and stumbled into an EPUB archive (https://nyaa.si/view/2082061) for untranslated novels, in it contained most of the Tenchi novels and the Sammy novels. So I bundled them together, for you all to enjoy. Don't expect too much, most of this stuff has already been translated and edited by individuals like Bob, Eff & Ricin. Couldn't find Photon or Geminar among them, unfortunately.
grab just the goods here (https://gofile.io/d/UC9gH9)