As for gear i would not EVER get the Cleric's gloves. Your allagan gloves drop in turn 1 and they give you Crit instead of spell speed. IMO getting cleric's gloves is a total waste of Myth tomes.
For me i'm leaning towards getting the Cleric's pants next, since the allagan ones drop in turn 5, and the boots drop turn 2. However your first priority should be getting your Thyrus +1, which is a big boost to your healing.