PC Feather-Longbow req 8 15%dmg always (-10Armor while attack) +30hp Sundering 10/10

I need a price check for this perfect and very rare Feather style Longbow.

Sundering Longbow of Furtitude
Piercing dmg 15-28 (req 8 markmanship)
15% dmg
-10 Armor (while attacking)
Armor penetration 10/10
Health +30

Thx for PCs

70-80k