I have created 100 hand Drawn hair images at 4096px high, width varies. Each hair is in greyscale. I use backdrop designer to place and tone the hairs (see video called Making Hairs). Backdrop Designer is sold separately. I have included example texture for free which is a tilable hair texture (4096 x 4096px) Normal, Mask and Colour. Render of the hair Ball is in Marmoset Toolbag 3 with Dual Anisotropy type setup and Dithered Alpha (R) channel using the maps provided.
FBX of Hair Ball with material applied exported from MTB3. (Materials, lights and Textures embedded)
Scene Bundle and Scene file (same size for some reason) also exported from MTB3 for reference.