My lvl 45 epic quest (Dark Side), Magic Secret Medicine is asking me for:
Spirit Core x30
Adamars Stone x20
So looks like you need 99 Rillans as well, but these can be bought from a merchant easily. They do drop so it'd help your money pouch to keep the one's you find.
Also, anyone notice the repeatable quest givers (the one's that give you the 10 min buffs or a bugged item) are all of the light faction? Just thought it was weird seeing humans and elves standing around giving orders to UoF.
Thanks for this list!