You got it! Right down to the USB stick--you have it all.
I had a devil of a time getting the NUC to boot from the USB drive on which I put the ROCK OS. I ended up having to go into the bios on startup and play around with the various settings concerning what drives the NUC would boot from. I can't recall the exact process but I remember I had to putz around to make it boot from USB. Also, even before that hiccup I had to hold down the delete key on the first bootup to get the NUC to recognize the keyboard. After those two issues, the ROCK booted seamlessly and I've been stable since.
I had a devil of a time getting the NUC to boot from the USB drive on which I put the ROCK OS. I ended up having to go into the bios on startup and play around with the various settings concerning what drives the NUC would boot from. I can't recall the exact process but I remember I had to putz around to make it boot from USB. Also, even before that hiccup I had to hold down the delete key on the first bootup to get the NUC to recognize the keyboard. After those two issues, the ROCK booted seamlessly and I've been stable since.