To everyone in the thread who was having issues with crashing: I found the issue. One of the lines in "appearance.2da" was incorrectly modified. I fixed the file so that it works, if you guys want to download it here.
https://www.sendspace.com/file/s7k9ln
If you'd rather try and fix it yourself, you basically need use KTool to open the original "appearance.2da" in the "2da.bif" file, find the data values for DarthRevanM under the "race" column, and modify this mod's 2da file so that it matches up to the original.