I recommend using Kiwix, https://kiwix.org/en/

They already have a monthly archive of ifixit available: https://library.kiwix.org/viewer#ifixit_en_all_2023-10/home/home

There are tons of other offline resources available for Kiwix as well https://library.kiwix.org/#lang=eng

If you want to use transmission as your torrent client I recommend checking out https://github.com/haugene/docker-transmission-openvpn . There are some additional configuration changes needed for mullvad but it should be straightforward.