i170 Master chest piece - 225 craft / 70 control / 4 CP
i180 Keep chest piece - 239 craft / 75 control / 4 CP
i170 Master chest piece with practical melds - 253 craft / 78 control / 4 CP (2 Craftsmanship V, 1 Craftsmanship IV, 2 Control IV)

Keep in mind for the practical melds, I'm assuming we're in 3.1 and SE has implemented a reasonable way to acquire tier V crafting materia.