Check out this link:
https://n2backpacking.com/long_trails/crt/crt_sections.htm
It breaks down four different sections of the Chattooga River Trail and provides some photos, maps, etc. I definitely recommend the Tim Homan book if you plan to hike it.
Hiking Trails Of The Southern Nantahala Wilderness, Ellicott Rock Wilderness, And The Chattooga National Wild And Scenic River
https://n2backpacking.com/books/nc/nc_books.htm#hiking_chattooga
The area near Burrells Ford and Ellicott Rock get the most traffic due to easy access, flat terrain, and quiet waters for trout fishing. Sections one and two see much less trail traffic if that’s yourpreference. The hiking is tougher but still easier than the AT in Georgia and there are numerous campsites – some on the river. If you can arrange a shuttle you can easily put together a two day hike. Or you could backtrack out. Regardless, your thinking is right. The CRT is a great place to go. I highly recommend hiking the entire trail. You could do this in one shot or fairly easily over four separate weekends. Let us know how it goes.