I was looking to sell this card on ebay (new) but i'm having a hard time picking the right price (mostly because it's quite hard to find this item on sale these days, especially new)
If you can't make up your mind on how much you wanna earn or get back, you're not in the market to sell. Since it's brand new, why don't you sell it at brand new price?
It's a sweet card, but the longer you wait, the less it'll be worth. I'd shoot for $300-$350, unfortunately, which is probably high considering the other options available.