So I tackled the whole suspension and as a result the car sits 2mm higher, giving a realistic looking opening between the wheel arches and the tires. Compared to the reference pics it's much better!
I still wasn't sure about the ride height, so I changed it again. Maybe I'll have to lift the front just a little extra because the car isn't standing straith...
All the Porsche 911 generations will receive the same color in order to be able to appreciate and compare the shapes without distraction of the different colors.