Price Check on Gold Amber Longbow

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I'm still new to pricing items, was thinking 2-5k for the +7 vs elemental and +15% dmg always. Should I charge more or less or just expert salvage.

Thanks in advance.

Psyker

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Barbed Amber Longbow of Warding
Piercing Damage: 15-28 Requires 10 Marksmanship
Damage +15%
Energy -5
Lengthens Bleeding duration on foes by 33%
Armor +7(vs elemental attacks)