Don't do it! I would pay 10% more for a speaker if it is properly packed for shipping. If you ever decide to go for the 803d, and you might, you will regret selling the boxes.
Put them in the attack or hang them in an upper corner of the garage with a few small nails and some twine.
Put them in the attack or hang them in an upper corner of the garage with a few small nails and some twine.