Best set-up under $20K

Hello!

I´m starting to look for an upgrade.  What would you buy with a 20k budget?  (new or used)

My actual system is bw803d2 with hegel h360.
I started looking at bw802d3 with mcintosh ma8900 + streamer (?)

I mostly listen to digital (Tidal) through iphone/airplay.  

Will install it in a big room (about 6mts x 10mts); listenning & dinning room. 

Tks