is that LN will send you those boxes for free, or at least they used to (and I doubt they've changed).
I got some used planes in the past that didn't have boxes. I called them asking if I could buy boxes for them because the seller lost theirs. I could not convince them to let me pay for the boxes - it's not LN's fault that the boxes were lost. They sent them without charge - I couldn't even convince them to let me pay shipping.