PC os hammers and insc staff

Dragon Spire Staff salvage the mods from it then merch or salv the staff (its iron or dust)
(this is just my opinion, I hate that staff, but it isn't very rare and drops from vaettir)

Mursaat Hammer idk

Q9 15wS Colossal Pick, I see Colossal Picks going for weird prices in the past few months so best guess is 5-25e. It all depends on finding the right person.

I would merch all.

I would merch all