Does anyone know how to display the extra fields before the read more, or post the entire article with the extra fields from the homepage (latest view) without the read more?

Hi. To change the display order of item text and extra fields you need to make a template override. Details regarding K2 templates can be found at getk2.org/documentation/tutorials/174-templating-with-k2-and-the-concepts-of-sub-templates. To hide the read more link in latest view you need to edit the menu link and set the "'Read more...' link" to "hide".