PC on 10/9 Storm Artifact + Near perf Shadow Bow

Hey i found this in Fow the other day could any1 give me an idea of how much it should go for? thanks.

Max Gold Shadow Bow
Req 13
+14% dmg above 50% health
10/9 Armour penetration
Armour +7 vs. elemental attacks


Gold Storm Artifact
Energy +12
Req 9
Halves Skill recharge (9% chance)
Halves Casting time (10% chance)

Thanks.

bumperdy bump