Edit: problem solved! In case someone else ever runs into the problem of needing mods from SHS/G3 when these sites are down: use the WaybackMachine at https://web.archive.org/ to access an archived version of the site and get the DL link from there
Original post: Since SHS has been down for a few days: does anyone here have a backup of igi's iiSpellSystemAdjustments? There is an old version 4.0 on github, however SHS has an updated "resurrected" version 7.1 which i cannot find anywhere else. The mod is also part of Leonardo's BWP if that helps.