After some research.. the 7900x and 1950x are pointless. In fact, adobe products will perform worse on these cpu's. The 7700k and 8700k are the best route to go and much cheaper.
Makes me a little sad, I wanted to build some crazy thing. Turns out it's absolutely pointless.
So.. 8700k it is.
Anyone still interested in this topic, here are some reading materials.
https://forums.adobe.com/thread/2411358