PC on Sundering Eternal Bow of Fortitude

How much would a bow like this be worth nowadays?

Sundering Eternal Bow of Fortitude
15-28 req9 Marksmanship
+15% dmg when health is below 50%
20/20
+30hp

What about if it was 15^50 instead?
Thanks

edit: is it not best to perfect salvage the mods?
i think its black, its difficult to remember what i did

its Gold, ofc

Color of that bow?
15^50 would be ~40-50k
id merch the 15 below

He means colour as in rarity- gold, purple, blue.

The mods can be salvaged but the bow itself is best of at the merchant.