As a result customers must login to view prices and must be authorized to view those prices. I would like to have content exclusive to authorized customers only.
Probably Twitch Wholesale module might help you: Twitch Wholesale with Twitch Wholesale Attributes

The module will give access only to certain customers to certain categories. You can also combine it with Dual Pricing for more control on pricing for those specific customers.

We worked something similar for a customer. Any info, send PM.