BuddyPress.org

@azreeceli – based on your post, you want to allow your user to post and want to customize the admin dashboard so the user won’t even know that their posting in the back-end by theming the back-end to look like the front-end of the site. That’s is do-able but a lot of work which = paid work.
There’s a way to allow your users to post from the front-end,install Jet QuickPress plugin.https://wordpress.org/extend/plugins/jet-quickpress/