It's better to recollect the tracks searching them separately.
Start with the thread I point in my signature. Then, download or buy the "The Eye" CD and the "Greatest Karaoke Hits" CD, which contains the instrumentals of the Queen songs.
Download/buy the 2011 2CD remasters of the albums.
Of course, buy/download Greatest Flix I & II DVD. And buy in iTunes, or download from QueenHub the alternative version of Innuendo and These Are The Days Of Our Lives (because the rest of versions have almost anecdotal differences), and "Mad In The Making".
Obviously, the 5.1 mix is unofficial and surely VERY FAKE. As a lot of the rare videos, which are created by him. So, I think you have covered almost the totality of the boxes, and also you could create -after downloading everything- more boxes.
The rest you can find it browsing in You Tube or searching in QueenZone.