not yet but i may, and put yet another set of tubes in front of the amp by going hybrid.
according to paul mcgowan of PS audio fame tubes sound best at the input section of the amplifier.
to get this in Class D form means the Rogue Audio Dragon or Medusa. I am aware of no others.
The PS Audio BHK amps also have tubes on the input stage but it is not class D.
Obviously off from the OPs original question yet it may prove a nice combo to pair a quality tube preamp with a class D amp also with input stage tubes.