i think you would be better off using the 'moreclothingCharSettings.txt' character folder setup if you are using that many hairs.
also isn't very usable to select hair in game with that many
if you have this text file in a loader characater folder, moreclothing will load the settings entries inside the file. this way the hairs are loaded into the menus when you load the character. though with that many characters, you might be better off just using a loader character folder setup anyway. moreclothing was meant to build up generic mods to mix and match, not to store your entire character library in memory xD