Sony SCD-777ES, Oppo UPD-205 or Marantz SA-KI Ruby

I have a Sony SCD-777ES with Kern modes and a super clock.  Run it these days only for CD with an External Oppo Sonica DAC.  Also have the Oppo UDP-205.  I am interested to get something better.  Will spend up to $ 5,000.  Could be new or used.  Could also be an upgrade.  The Marantz SA-KI Ruby seems a nice choice.  But I am open to something else.  What is my reference to match - Oracle Delphi with ET-2 tone arm and a Cello Miyabi cartridge.  I want a SACD/CD rig that sounds as good as my vinyl rig.  Neither Sony nor Oppo can do that.  Thank you.