I actually placed an order recently for Alliances. I was going to get rid of the Master Set box probably. It does have the plastic insert. The box corner is a little damaged, but overall it's functional. I can send a pic of the damage. If you're willing to wait for my Alliances box to arrive, I can send it to you. You'd just have to pay shipping.
Cool, yes please send a pic of the overall box and the corner.