The easiest way to get a clean MOULa installation is to completely remove all files except for the launcher. That will result in a 1.4GB download on next startup, but only then you know you successfully remove all Drizzle/Offline KI stuff.
Uru CC will then be a completely different world. The two installations don't know anything about each others, and that's perfectly fine. Just choose good folder names so that you always know which one you need now, and where you are

(I have about 4 or 5 Uru installations on my PC

)