Sounds like you may have a shift interlock issue.
Here is a guide that will help with this:
https://www.2carpros.com/articles/ignition-switch-wont-turn-stuck
However, below is the process from the manual on how to replace the ignition as you requested.
If the wheel will turn then it sounds like the steering lock is unlocked which means the ignition is most likely broken so your approach is most likely correct.
I am attaching the entire process below on how to replace the ignition. Please run through this and let us know what questions you have.
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Wednesday, August 11th, 2021 AT 6:50 PM