HERE is a blog post I did over the weekend describing two approaches for processing A7RII and other A7 images in Lightroom.
The difference is the tone curve applied to a camera profile created in Adobe Profile Editor and used when importing the images into Lightroom. The linear curve is a flatter, darker starting point. The base curve is brighter and more contrasty.
Will be interesting to read comments.
Here are the two final images from each workflow;