If Bentancur is healthy I would be up for a formation like this.
Maybe swap Kane's position with Kulu and Richy. I think that Kane's current lack of speed but increased playmaking would suit that position well. He can distribute onto Dejan and Richy, and then make runs into the box to pounce on any deflected shots/balls from out wide.
I just don't see Harry winning many sprints against CBs now. So best to put him in a position where he can still be lethal, but don't have to do that.
The problem with the dea of Kane as a pure 10/CAM is that the position still commands that he chases, presses etc.......
Modern, dynamic football is rarely able to support passengers like Ndombele, Ozil, BrunoF, current day Romaldo etc.