This is a version of the mod that is compatible with Fate Patcher Core by LuxenDM. Using his system, you can install this mod with ease, and it should still be compatible with other content-adding mods.

Copy the .rar file to your fate game directory (Steam/Steamapps/common/FATE)
Extract the .rar file there. (right click and select "extract here").
Note that you'll need winRAR or some other compression program to extract the file.