Do you find yourself running out of mana often? Spirit would not be among my personal choices for suitable gear. If you don't care about armor so much, I'd stack as many of the int/stam/haste/crit items as poss. (Scarlet Hall boots, ring, [maybe gloves]. Arathi Basin belt. Satchel gloves)
I'd also say the same about stam over caster stats. It's all personal preference depending on your play style, but more stam generally means your less good at what your role should be focused on, imo.
Just my two cents. Best of luck on the field!