PC on max dmg bow and few other items

The composite bow is purple max dmg
requirement 8 markmanship
with 10/7 sundering

The shield of the wing is max def
quick recovery from deep wound and it looks cool
but requires 12 tactics

The gold skull shield is max def
+33 health while enchanted
requires 11 tactics

The gold flame artifact
requires 9 fire magic
energy +12
health +32 while enchanted
Improved casting speed 9% chance

So are these worth something?
Thanks in advance

If the purple composite has no imbedded dmg mod then expert salvage it for that sundering string 10/7

I would expert salvage the shield of the wing because the req is too high, or you can MAYBE sell it for 750-1k

Not sure on Gold Skull Shield somebody else will have to help you with that. I personally think the req is still too high for a tactics shield.

Flame Artificat is nice and should sell for a decent amount. Again I'm not exactly sure so I'll keep my guessing to myself.