Leave Settings, CMS Server, to frankmcpherson.net:8080.
Leave File, Outline Settings to the default.
If I do the above I can write and publish updates to the AWS S3 bucket hosting blog.frankmcpherson.org.
The Home and Eye icons in Fargo point to [outline name].frankmcpherson.net so it is not bringing up blog site.
All of the navigation links that Fargo creates for the breadcrumbs at the top of the page are pointing to [outline name].frankmcpherson.net so they do not work. (See the links at the top of the page.)