PC For A Gold Half Moon Bow?

Hi, i need a price check for:

Silencing Half Moon Of Marksmanship (gold)

15-28 (requires 11 Marksmanship)
Damage +20% (while health is below 50%)
Lenghens Dazed Duration On Foes By 33% (stacking)
Marksmanship +1 (19% whilst using skills)

PC please?

Merchant food I'm afraid, high req & bad dmg mod.