Hey Miles !
Link works correctly, I’ve had a couple reports in the last few days. Try with incognito mode on your web browser maybe ?
For your zip issue, you should only open the first of the 9 downloaded files with 7z, and extract the folder (you will see that the folder size is 35GB). See below :
We are working on deploying the plugin on the Marketplace for easier delivery to everyone.
Cheers !
Antoine