Correct way to use Avatars SDK with Interactions SDK?

P.S. As a first crappy experiment I dropped a player controller rig from one of my Interaction SDK projects into my Avatars SDK project and got it working such that my avatar had two sets of hands - the avatar hands + the hands from my rig. It actually works to some extent in hand tracking mode if I then disable the rendering of the extraneous hands, but clearly this isn't the correct way to do it. Also, the hands on the avatars are smaller and they don't line up at all with the Hands when in controller mode. (Different sized hands, different poses in controller mode, different positioning, etc.) 

But what is the correct way to setup an OVRPlayerController, CameraRig, AvatarEntity, and so such that it works with Interaction SDK and one can create interactions and hand poses using the tools from that SDK?

As a POC I'd like to get the Interaction SDK samples working with an Avatar rather than hands. I.e., Complex Grab, Direct Touch, and Pose Detection. I feel like this must already exist somewhere?