Using kinect v1 face tracking with Unity 5?

Hopefully this isn't a stupid question-- but I have been searching quite a bit on this topic for a couple days, so I finally am asking.

I have Unity 5, and I want to try using the Kinect V1 with it.. including face tracking. What's the current best way of doing this? (I realize the Kinect V2 is better but I need to work on Windows 7.)

I see MS themselves have a Unity package out-- which is exactly what I'd want to be using-- but I can only find one for Kinect v2. Did Microsoft ever put out their own Unity asset / package / demos for Kinect v1? And if so is there any way to still get it?

I did get the "Kinect with MS-SDK" asset (RF Solutions) from the Asset Store to work for me-- I did get body tracking with Kinect v1 and Unity 5 working with this: https://www.assetstore.unity3d.com/en/#!/content/7747

However, since I want to try face tracking as well, I really needed the "KinectExtras with MsSDK" asset as well (RF Solutions) but this appears to be no longer available: https://www.assetstore.unity3d.com/en/#!/content/10492

Maybe there are other solutions for this now though, or maybe stuff is built into Unity that wasn't before... I just don't know. Part of my difficulty is no doubt that although I have tons of 3D and programming experience, I don't have Unity experience.

I've tried Googling quite a bit about this topic, but I'm running into a great many different solutions, some of which I get the impression date from the days when Kinect v1 was just barely starting to be added to Unity, and many of which are therefore outdated. I am thus having trouble picking through all the options to find the best bet. For instance KinFu seemed to be the best bet at one point but I get the impression it's no longer considered the best method (though maybe it is for V1.) The CMU page for Unity and Kinect SDK 1.7 looked promising but I couldn't get it to work, which could be either my naivete with Unity or maybe it just was done too far prior to Unity 5 to work now.

Thanks for any advice!