Does "soup to nuts" not include loudspeakers? Power amp? *Only* the DAC + streamer, with or without preamp functions?
Some of the above suggestions (such as the Lumin P1) could cost $10K for the streamer/DAC/preamp alone. The Lumin P1 is a great suggestion if it's the only thing you need.
For less than half the price of the P1, consider the Matrix Element X2. The HiFi Rose RS150B runs about $5K. For these, you'd still need a power amp. If you don't already have one, consider the Benchmark AHB2. But that wouldn't leave much for speakers.
Another alternative: the Naim Unity Atom for about $3800, which includes amplification. With ~$6K left after the Unity Atom you have many decent options for loudspeakers, if you need those. Maybe the KEF LS50, Spendor A7 (a bit over budget), Magnepans ... depending on your preferences and possibly on what is available to audition in your area.