Didn't know that. Weight didn't seem to come into play earlier this year when I talked a guy off craigslist into mailing me about 3/4 of a five gallon bucket of steel tumbling media. He split it up into 3 of those boxes if I remember right, in different sizes. The postal workers on my end didn't see the humor. (They made me come back and wheel a cart out) Not even when I strapped 'em on the motorbike.
Live life like its a cartoon!
Whatever gets it moving quick and you(she) can live with. You don't want a big, long process, right? Chop it up and sell it. Could be its not worth your time.