pc on a few bows

Firey longbow of shelter (gold)
fire dmg 15-28 (req 11)
armor +7 (physical)

Barbed bramble shortbow of enchanting (Gold)
Piercing dmg 15-28 (req 11)
Damage +20% (while health below 50%)
lengthens bleesing on foes 33% (stacking)
enchantments last 19% longer

Zealous bramble flatbow of fortitude(gold)
14-27 (((req 11)
energy gain on hit 1
energy regen -1
health +30
inscription :dmg +14% vs hexed)
I know this one is lame but it comes into play with a later question)

Sundering azure shortbow of enchanting(Gold)
15-28 (req 13)
armor penetration +20% (20% chance)
enchantments last 20% longer
inscription : dmg +19% while health below 50%

and finally if those are worthless someone told me i could get a decent amount by taking a sundering and fortitude mods off the above and adding them to an eternal bow i have. it would make this.

Sundering eternal bow of fortitude (gold)
15-28 req 11
dmg +15% (while enchanted)
20 (20) sundering
health +30

Tthat worth anything or also pointless?

1. merch, no inherent dmg mod
2. merch, bad dmg mod
3. salvage for mods, not max dmg
4. salvage for 20/20, high req
5. naah you won't get much out of this, 5k-8k~, don't mod it

k ty. thread closed