It’s a long story, but my original plan was just to replace my old GW studio undead army I had when I was working there, that I sold in the late 90s. I’ve basically limited the models to ones that were in production when I left in 1991. Since then I’ve expanded the project and added a few later models, like the plastic skeletons pulling the sarcophagus, some others I converted to arquebusiers and crossbows, and some of the cursed company that I loved, but yes, largely everything there is pre ‘91.
Totally doable, there's a WD army list that isn't much different from the contingent list, but not very interesting run by itself.