As Undersky11 mentioned earlier....no need to download everything again.
Just download what you need.
Used waves central to install only the Abbey Road Mastering package then,
1. mount WavesLicenseEngine_patch.dmg (from a previous download)
2. copy the k’ed Waves License Engine: WavesLicenseEngine.bundle > /Library/Application Support/Waves/Modules
3. Ran both Waves AU Reg Utility 9 (applications /waves /waveshells v9/
4. opened Logic Pro & re-ran Plugin Manager...all passed and working.
Took me 15mins