Some Additional NUA Considerations
If you want to take advantage of NUA treatment, make sure you don't roll the stock over to an IRA. That will be irrevocable, and you'll forever lose the NUA tax opportunity.
You can elect not to use the NUA option. In this case, the NUA will be subject to ordinary income tax (and a potential 10% early distribution penalty) at the time you receive the distribution, unless you roll your distribution over to an IRA.
Stock held in an IRA or employer plan is entitled to significant protection from your creditors. You'll lose that protection if you hold the stock in a taxable account.
Be sure to consider the impact of any applicable state tax laws.