Question about selling an Ace Combat Assault Horizon Press kit

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Hi everyone!

I'm planning on selling the Ace Combat Assault Horizon Press Briefing Box. I don't wanna get $160 for it, like the ones on ebay, but still a fair price.

But before I put up this auction I had a couple questions:
- What's the right price for this to start the auction with?
- The box came with a pen, notebook, promo copy of the game, a t-shirt from Ace Combat and then a polo from Namco. Was the polo originally included in the box? I can't find much on this on the web..

Any info would be appreciated - thanks in advance!