Hi. I have Cakewalk Content on a separate ssd.
(I always copy, then delete when done instead of move. That way you can check it if worked before deciding to delete old location.)
Copy the CC to your new HD, and in SONAR under Preferences (P), File, Folder Location, adjust the location of CC.
The same goes for CCC.
I have done this several times, and have not had any issues with it.
I'm not pc savvy enough to dare venture into junctions..
Hope it helps.