I read through the whole list and did not see the Location Crafter or Adventure Crafter by the people that did the Mythic GM emulator. You basically create a list of rooms and separately items that would be in them and separately creatures or whom would be in them.
You cross off any that you want to be unique after the party rolls them and allow repeats of anything like connecting hallways or the like. Each time you add +1 to the roll making it a progression that does not go in exact order.
Meanwhile, It can’t go any more gonzo than the weirdest stuff on your list and with only 3 or 4 d12 lists, you can get pretty random combos.