Advanced user access control and activity tracking

I have a client with video presentations containing proprietary IP that he wishes to make available on his WP site.

Due to the sensitive technological nature of the content, he wants the pages (or individual videos) password protected, and he wants to track the access/viewing activities so if patterns of “credential sharing” are noticed action can be taken on a user-by-user basis.

I’ve seen this done before by means of a private client portals, but since this site is on WP I’m looking for suggestions on the best way to accomplish all this.

So far here’s where I’m headed…

1. Overall site security: Secure WordPress (plugin)
2. Enhanced user registration: WP Members (plugin)
3. Activity tracking: LBAK User Tracking (plugin)
4. Page/video access control: ???

Additional questions…

1. Is there any benefit to two layers of login access: (a) registered user login to WP; (b) additional pass code entry for individual pages/videos/links?
2. If so, is there a WP plugin that would automatically issue/accept random alphanumeric-symbolic pass codes tied to specific pages/links?
2. Can/does WP prevent website visitors from going directly to the source URL of a video once it is known?

As you can see, I’m already getting down into the weeds here. Please feel free to reset up to 10K feet if I’m over thinking this or going down the wrong path.

Thank you…