After a couple of hours aimlessly shuffling textures and meshes, finally an idea occurred to me, after stumbling upon a seemingly incomplete armor in the "Shadowdancer" folder of Hentai's "Hentai Mania". Incomplete and unused, because the textures attached to it lack the necessary normal maps to be properly displayed by the game. Anyway, I took the skirt of this armor and mixed it with RedguardMage's Cheerleader top, Ryk's boots and TS' cap or beret.
RGMs CheerLeader Outfit HGEC - RedguardMage aka RGM (Top).
Hentai Mania - Hentai aka Zotman (Skirt, textures).
Ryk Athol Brose HGEC Beta - Ryk (Boots).
R18PN 02 - Lingerie Set for HGEC - NPR aka KURESE (Bikini thong).
UFF Jewelry Mods - Jclyde and Kalikut (Bracelets).
UFF Jewelry Collection - Petrovich (Collar).
TS' Cloth Mod - TS (?) (Beret).
Hidden Elves - Korana.
Hentai's Lovely House - Hentai.
Screenshoter's Illumination - Pujangga.
Ryk - Pose.