Well lets do some maths:
Helm: 500pp
Arms: ~500pp
Bracer: ~21kpp
Hands:~500pp
Boots: 5-600pp
So you're looking at 2k for head/arms/hands/feet, 21k for bracer, for a total of 23kpp (give or take). The chest and legs are from raid mobs, so I'd figure 150-200kpp per piece. I think the ballpark of 375kpp might get you a full set.