Make sure wheels are pointed straight ahead, saves time later, lol.
Disable airbag first, disconnect battery, wait 5 minutes, airbags store a charge, then disconnect airbag wire under steering column, look here:
yes, it will be good to have a puller handy, it is usually required.
You may also want to replace the clock spring wire harness, it is under the steering wheel, this is what allows the wheel to turn and the airbag and buttons on the wheel to stay connected.
These do wear out from the continued flexing, but really up to you and your budget.
Video here on pulling steering wheel: