If the best set up is for the music and sound, check out Wavetouch audio system. WT is closest to the original and live music in the world. And it is only real natural sound system regardless of cost. $20k is not enough for whole system but close. And cables can be bought later. Listen to WT live recordings.
Prelude to a Kiss (Ella Fitzgerald, Stuff Smith) Live recording
Johnny Hodges - Satin Doll, Live recording
Chantal Chamberland - Beautiful Life, Live recording
Alex/Wavetouch