Awesome Taming!!
If you're having issues I found I had to turn the Kobo off then back on before they showed up. Not sure why, but once I did that it works great.
EDIT: so just turning the Kobo OFF then ON also seems to get rid of removed fonts from the menu without doing a factory reset. I have found that you lose some of the on screen options in newspaper (i.e. back to article list) with some fonts. I think this seems to be related to whether they have a separate Bold, Italic file etc.