Vintage IBM Correcting Selectric II 2 Typewriter Font Balls, manual, tape BUNDLE

This vintage IBM typewriter is in parts/repair condition. It powers on and everything seems to be working except for the track (left to right movement). Not sure how to fix this, just hoping someone can restore this magnificent thing. Comes with a bundle of supplies (see pics). Super cool retro machine with a lot of life left in it, just requires some repairs, hopefully simple fixes. Enjoy!