The file naming convention looks like this. Bodies have normal Daggerfall sprite names, i.e. 381_0-0.png. The heads have something like -cdm-h1.png appended. The "cdm" is a unique three letter identifier for the head pack or artist, in this case carademono. The h1 or h2 simply represents which head the png has. Basically all that's needed is a script that half the time superimposes 381_0-0-cdm-h1.png onto the body, and the other half superimposes 381_0-0-cdm-h2.png. If successful, we will then have BOTH of these villagers walking around Hammerfell (and hopefully not the headless zombie).
Let's do this, Daggerfall modding community!