For now, there are no schematics for belt, bracers, gauntlets and boots.
I think belts and boots are being added in patch 1.3.
Underworld Trading is the crew skill that returns armortech schematics, to the best of my knowledge.
RE dailies, i think, is only possible for the new content added in patch 1.2, so basically the PvP armor and the Corellia equipment.