When I shipped the small 1:43 scale models... I always put the model in a box, padded with bubble wrap or peanuts - and then in a larger box. Most of the time the packages were bigger than a "shoe box"... bc I was so paranoid with shipping problems/mishaps. I know a few of my orders the outer box was crushed but the inner box survived!
I feel bad for you guys with damage models. Maybe Max can fix them. ?
good luck,
Dackel