Why do you need a box? You should take it out of the box before using
That being said, I'll sell you my box for $50 + shipping (it is missing the UPC code)
Agreed, I have found electronics work better when they are removed and placed on a stable shelf. This is especially the case this time because it is an optical drive and will wobble or potentially damage the unit if not taken care of.
But it is awful generous of you to offer up your box in case he needs it.