[itsbuzzi]

Due to space restriction I keep mine in the Marvel and Castle set boxes. I remove the wings on all dragons and bugs that are able to be removed and gently place them in. They have been fine so far.

I see you are concerned with parts that can bend too. In my experience the only original figures that have easily bendable parts are the Spearmen and the Knights Calvary. They are stored separately.

Otherwise as long as there isn't a lot of spare room in the containers to be shipped in, like how I store mine, and the boxes themselves will be shipped without much throwing/abuse you should be alright.