Actually, it’s getting even more complicated. Other Audiogon members have suggested that I look at Lyngdorf & Novation Cocktail streaming devices I wasn't aware of, both of which offer ostensibly more mature HiFi Rose-like graphical interfaces: .
I have to admit that they do look impressive, but they're complex multifunction Swiss-army-knife components. So this may take a little bit of research.
After already spending a month sorting out a way to insert new amplification, DAC, and streamer into a multi-channel system, I’m ready to take a break.