PC 3 Gold Shadow Bows Req 9,10,12

Well, I picked these up yesterday and could use some help.

1. Fiery Shadow Bow of Warding
Fire Dmg: 15-28 req 9 Marksmanship
Damage +15% while hexed
Armor+6 vs elemental attacks

2. Shadow Bow of Marksmanship
Piercing Dmg: 15-28 req 10 Marksmanship
Damage +15% while health is below 50%
Marksmanship +1 17% chance while using skills

3. Ebon Shadow Bow of Trollslaying
Earth Dmg: 15-28 req 12 Marksmanship
Dmg +18% vs Trolls

I realize that all of these might be junk, especially 2 and 3. But figured I'd ask first.
If they are junk, are any of the mods on 2 and 3 worth trying to salvage?

Thanks for looking.

1 5-10k
2/3 junk

24hr bump