$40,000: What 2-channel system would you build?

I am a total Lumin fan owning the A-1 and now the X-1.  That is a great start.  I can't say enough positives about Lumin.  I had mine paired to Sonus Faber Amati Tradition Homage Speakers.  Prior to purchasing the SF's, I direct compared to the Wilson Alexia 1's.  There was no comparison as the SF's beet the Alexia's in overall music and sound by a large percentage.  You can get used SF's for $17-22k.  I had a Raven integrated MK2 Reflection Tube Amp.  It was also great.  IMO you can save money by buying an integrated whether it is a tube or a Luxman or Gryphon.  I also have a brand new pair of Mola Mola Kaluga and Makua Amps that have never been used that I am going to sell shortly.  I decided to go a different route and going into horn speakers.  The Mola Mola Amp and Pre amp retail for $28k and I will be listing them shortly for $14k.  They can drive any speaker you could possibly buy.  I am buying a whole new system because I just sold my house and all of the audio equipment.