Hello Everybody

I'm Getting The ACIV Skull Edition Basically For The P.O. The ACIV Black Chest Edition Is The One That I Really Want. My Question/Advice Wanted Is: How Much Should I/ Would You Pay For The Black Chest Minus The Duplicates (Game, Artbook, Soundtrack, And 2 Lithos) Provided Someone Is Willing To Sell It This Way? Would I Be Better Off Just Waiting (Probably A Year) For It To Come Up Cheaper On Ebay? I Know In The UK The PC Version Is About $170 USD And In Europe About $184 USD. Any Replies Would Be Greatly Appreciated