B>Emp Mage Shoulders (and price check plox)

I'm buying one that's preferably 3 lines and has rare or epic potential. How much do these go for in GAZED?

Also selling:
tempest ring; unique, 3 attack, clean u/h, 21% STR, 10 additional potential, 6b A/W c/o 4.2B
tempest ring; unique, 3 attack, 0 slots u/h, 21% DEX, no additional potential, no one offered anything yet
imperial duke wings (can someone give a rough estimate on it's price?)
Maple VIP mage shield, legendary potential: 21% magic attack, 12 magic attack additional potential, clean
Maple Magician Shield, legendary potential: 13% int, clean