Man, I'm really sorry to see that - such a beautiful pair of speakers.
Here is what I would do:
get all the insurance you can from UPS and then sell the pair as scratch and dent for a reduced price. I assume they still sound fine and the damage is purely cosmetic? If so, there are many guys like me who love high end audio and cannot afford what our ears desire. We'll go with some cosmetic damage to achieve sonic bliss
a couple of examples:
-- I built GR Research AV2s from some cabinets I found on craigslist. The cabs were designed for AV2 specs, but had a healthy 1" dent in the bottom edge. The dent is a bummer, but I got the cabs for a song and now have incredible speakers.
-- I bought a heavily dented rotel RB980bx power amp. Functions perfectly, but looks like hell. $100 for a decent mid level power amp.
anyway, the damage is tragic, but you might do well in the end.