If Elemental Companion is allowed, you may want to look there for elemental attack spells, barrier spells, wispling/familiar spell list. They have been very helpful and have the added bonus of being made of Proto Elemental Material (PEM) which is not "normal" fire/water/air, etc. Given that you were allowed 8 lists, it sounds like a really heavy campaign. Please keep us updated. I (as well as others, I'm sure) would love to see what you choose and how the campaign progresses.
As was mentioned in a different thread, for healing, I believe one can only cast one type of healing spell per injury, not multiple spells for the same injury. Depending on what healing spell lists you have access too, Stun Relief would be high on my priority list. Nothing worse than "Stunned and unable to parry for 6 rounds" while you get tooled on. Close 2nd places would be Stop Bleed or Set Bone. Maybe, 3rd on my list would be Concussion Relief. Your PC will only be able to regenerate so many HP per rest period. Save the potions and herbs for immediate relief in battles or dire emergencies when you have no PP left for the day or when you really need to save those PP to set a bone.