Hi Rick,
To answer your original question, yes you can rip all the goodies including Dolby Vision from a UHD disk BUT getting it playback on either a PC or hardware player is tricky or requires a compromise.
In short, only the Oppo players have been known to successfully play a full disk rip with DV intact and even then the player will more than likely require a jailbreak firmware to remove Cinavia if its not already been removed at time of rip and the rip itself needs a slight modification to allow it to play.
You can maintain the DV stream within both MKV and M2TS but there are no software players / filters / splitter that can cope so regular HDR is all you can get here on PC playback.
And lastly, you can mux the DV stream into an MP4 container and from what I have read, these files are perfectly playable over USB / SMB using the internal players of DV enabled TVs and UHD players however, MP4 doesn't support TrueHD / Atmos so you will need to choose between the best quality audio or best quality video.
Personally, while completely sold on HDR, I'm not so convinced about DV. Having watched all my disks at time of purchase in DV then again a few months later once ripped in regular HDR, I can't tell the difference. Now, I am not saying there isn't one, but I'm more than happy with good old HDR.
With regards to ripping and a bit of future proofing, rip the disk to ISO or BDMV to keep the full disk structure intact. You shouldn't have any playback problems across most devices and if DV becomes easier to playback from rips in the future, you'll have the movie in the original folder / file structure to work with.
Chris