"Concerning the stylist plugin: there seems to be nothing similar in the public releases of tinymce."
The only thing I found when looking into this was an article [http://atutor.no/2008/07/adding-styles-tinymce-styles-select-menu] by a developer of a tool that uses TinyMCE. So it apparently IS possible to set up a custom list of styles but it's more of a manual process.