my maths aint great but going by the number of discs and the content your trying to download the numbers dont match ???
if your download has stalled for over a week would it not be safer to rename the torrents and try again thats what i do and it sometimes works, or remove all the whole discs ( complete files ) and try again with the torrent/magnet file but omitting all the complete files from the download? i find that sometimes works
i myself have not started gathering my missing dance mixes yet there are a few russian sites you could try but not sure i'm allowed to promote them here
here is 1 but you do have to create an account
https://rutracker.org/forum/index.php
(SORRY ADMIN PLEASE DONT BAN ME just trying to help)