Sorry, I'm not allowed to post photos.
The setup isn't very special. A 3458A, a 34470A and a FuG high voltage supply (HCP series with high stability and low noise options). Everything is connected with coaxial high voltage cables and 10kV-SHV Plugs. The HV probes are simply connected to a wire which is soldered to a 10kV-SHV jack.
The DIY 1000:1 divider is built up of 20 selected Caddock USF 371 resistors and a 100k Vishay S102 (or Z201?)+some Rhopoint PWW for fine tunning. Worst case uncertainty calculation gives about 35ppm at 10kV, but it seems to be much better.