Higher End DACs

Nice kit so far...  You probably owe it to yourself to hear a Chord Dave and the Hugo M scaler...  And have a look at the Lumin U1 or U1 Mini as a streamer...

You should audition a few samples of DACs and streamers to get a handle of the type of sound you favor.  Pick something in the highly detailed, accurate camp, such as the Esoteric, and then something at the other end of the spectrum, like Audio Note DACs (more lush and harmonically dense, but, not as detailed and clear sounding).  Then, you will be better informed by the vastly different opinions that will be presented to you here.

For a single-unit network streaming DAC, I'd recommend looking at the Bryston BDA-3.14 and Lumin units. Which direction between the two would be a question of which sound character best matches your preference.

I also really like Devialet Expert Pro units but those are best used as all-in-one directly connected to your speakers, which doesn't exactly match what you're looking for.

thanks for the thoughts, so far, all.

many of these brands don't have local dealers to me - when you get into this class, are dealers willing to ship units to you for you to listen in the context of your own system?  Curious how else one goes about narrowing the field and/or making a significant purchase decision, given I often see system synergy being a deciding factor for making an informed choice.

Dealer restrictions vary by brand, but in general manufacturers do want to make their product available to as many people as possible, as long as the means of doing so makes sense.

Your best bet would be to reach out to a non-local dealer you can trust, to see if something might be possible. Options may also vary based on the cost or size of the product.

The dealer may also be able to provide you with more specific recommendations based on what you're looking for in terms of functionality and sound quality.