This is a MEGA pack of all Haarlemmergold German buildings to date. It has been made and uploaded with his full permission. 
There is a Cleanitol and a Prop Catalogue index image in the zip which you can use use to remove the models or use BSC Cleanitol to do the work for you.

INSTALLATION: copy/extract the Haarlemmergold parent folder from the ZIP into your Plugins. If you extracted the ~Documents folder too, it is highly recommended to keep it, but move it out of your plugins folder to a safe location.