I am also curious about this myself. Im in Bera and I have two engines, one with 5 att and one with 4. Also have 2 pure gold machine arms, and not sure how much these are going for and they are taking up space
Depends on the amount of attack it has. Avg is 5 attk I believe, so those are hardly worth anything. (People find them all the time and even drop them.) If it's scrolled for higher attk, then it might be worth 3 mil.