as a compromise i started using nemo/n̶a̶u̶t̶i̶l̶u̶s̶ with a plugin that puts a terminal at the bottom of each tab. so i have a graphical view of the terminal but a commandline in the same folder right next to it. the two don't interact other than being able drag and drop filenames from the filemanager into the terminal, so it is far from what we really want, but it's a small start.
Do you mind sharing a little more about the plugin you use? A quick online search wasn't very helpful to me but I've also been hoping for something like this.