Zmanasastronomy,
The short answer is yes. I think you'll discover that CD quality is easily attainable on all CDs that you rip to a NAS, whether you use a standard hard drive or a ssd. On hi-rez files (24bit/96khz and above), you'll probably achieve better than CD sound quality, especially if you use files that were recorded direct to digital as opposed to files that were just transferred to a hi-rez format from the original master.
The issue you'll run into, however, is that not all hi-rez file retailers are willing and able to give you an accurate provenance on all their files. Provenance seems to have become the accepted term for hi-rez files that describes how hi-rez a file actually is; basically the history of how the file was produced.
I haven't updated my system profile yet, but here's my system setup:
A Synology 2TB NAS, with a Seagate 2TB backup drive, located in my family room next to my wi-fi router. Both hard drives are standard spinning disk types and all hookups are via standard USB cables. I believe substituting solid-state hard drives would be quieter and faster.
My main system is located about 40 ft away in my living room and is used for both 2-channel music and 5.1 surround for ht. I'm using an Oppo 105 as a surround processor, bluray player and use its internal asynchronous Saber dac for all CD and hi-rez music file playback. I use a laptop, running JRiver, at my listening position to control all music playback. My entire CD collection has been ripped to the NAS along with a handful of 24/96 hi-rez FLAC downloads. The laptop, Oppo and NAS are all connected to my wi-fi and communicate with each other wirelessly (the Oppo comes with a wireless fob that is attached internally as a USB port).
The overall result of this setup is a high quality jukebox; ultra-convenient and fun to use.
You seem to be set on hard wiring your setup. When I setup mine, the general consensus was that hard wired offered better performance. I tried it wired and wireless and could detect no difference so I went with the more convenient wireless. I've had no issues with drop outs or less than excellent sound quality during about 6 months of usage.
My advice would be to go forward with it.
Hope this helped and good luck,
Tim