Ahhhhhhh! You're killing me here Fear.
Did you even look for the Babel NPC? Because the file is literally called BABELQUEST.NPC lol. Hard to miss unless the server files you're using have it missing. For a lot of the files, the Babel NPC automatically shows. If not, you can simply enable him via the hotuk (look at the resources thread for the exact line) since it is an event. That will make him appear in Ricarten.
For SoD, most people make a copy of all the normal monsters that will be in SoD, naming them like SoD_HeadCutter. They then modify each monster's value to change the rate. I find this way convenient since you then are also able to make certain monsters easier or harder specifically for SoD.