All of this gear comes from the Burning Crusade. Taloring patterns and some Sunwell drops. I'm afraid it might be hard to obtain the shoulders and helm but I'm sure there are easier options out there.
Shoulderpads of Knowledge's Pursuit
Helm of Arcane Purity
Boots of Blasting
Belt of Blasting
Sunfire Robe
Sunfire Handwraps
Crystalheart Pulse Staff
