It’s been several years since I last visited the website, but I had a couple of messages during my absence, asking whether I still have a copy. If it helps, I still have original .rar files (or whatever extension they came in) that had to be downloaded for the following release files:

Artwork:
Artwork pack (by stardork, adapted from Phildesfr)
Variant Booklet covers with doco-fanedit info (by njvc, adapted from Phildesfr)
Variant Disc labels (by njvc, adapted from Phildesfr)

Bonus Documentaries Options:
Star Wars Trilogy Documentaries (BD 25)
Star Wars Trilogy Documentaries (BD 50)

Return of the Jedi v2.5 (both BD-R 25 and BD-R 50) as well as the Bonus Documentaries Disc (BD 25)
STAR WARS v2.7 (both BD-R 25 and BD-R 50) as well as the Bonus Documentaries Disc (BD 25)
The Empire Strikes Back v2.0 (both BD-R 25 and BD-R 50) as well as the Bonus Documentaries Disc (BD 25)

Edit: Here is two images to be used for reference, one showing the folder names and when they were backed up using rclone and the other shows the overall size (assuming that someone has something to compare it to).