Pc On Perfect Eternal Bow 15% always

Hi, i need a quick PC for this ultimate damage bow:

Sundering Eternal bow of Markmanship (req.11)
Damage +15%
-10 armour
Sundering 10/10
Markmanship 20/20

Thanx for you time dudes

OMG, i hate this when nobody answers a PC :/
Anyone MUST know this, c'mon I need it...

around 150k

I'd say 80-100k bit of a high req