Turns out chopped off animal heads, limbs and some more heads that are all zombified can somehow pass off as a worker.. uhhh, sure. o_O Did save me the trouble of finding complete bodies and had a total of 16 workers (including my ischroboar male adventurer), most of them were heads of various kinds along with 3-4 headless bandit bodies some missing their limbs, "Tis' but a flesh wound!" comes to mind along with an image from an old game.
In about 80-90 or so ingame hours my large version of the same building style/structure was complete with all of the doors and a hatch along with most of the other furniture being mastercrafts and all that from my custom and altered two new non-rotting wood types, furniture and doors are made from spore tree alternative (Zilir spore tree) and the structure itself is colored green and is made from a mushroom tree that I named Zilir-cap. After the building was completed I put my workers to rest and put all of their their bodies/body bits in a special casket in my building.
I also before I went to find a site to build my thing I stumbled upon an ant woman blowgunner at my starting bandit camp (where all my corpse collection was/is) who ended up being my minion companion of sorts, someone's gotta run the tavern after all and since she lacked a name I gave her a nickname 'Zerr'. First natural animal person I've found and gotten to join.