Connect 30" Apple Cinema HD Display to 2018 Mac Mini
Re connecting a Mac mini 2018 to 30" Apple Cinema Display*:

* Apple Cinema Display 30" refers to TFT-LCD model (M9179LL/A) only! This does NOT work for the LED apple cinema displays.

You need the following: 


Power Adapter of the Apple Cinema Display
The apple mini display port (mini DP) to Dual Link DVI adapter (sold second hand only, 30-150 USD) apple number MB571LL/A A1306
and 
USB-C to Mini Display Port adapter from LMP (https://lmp-adapter.com/?s=16138) (ca. 30 USD from new.)


This combination runs smoothly at 2560x1600