Not exactly sure where I got this from, but found a Yuutoobs video of WWII-era instructions on field-assembly of a P-47. I didn't know they did this then, but it sounds like a possibly good idea:
https://www.youtube.com/watch?v=slfLBVUEQNw heardle
The video is not that good a quality, but shows the process well enough. Ship in a bottle? No, plane in a couple of crates!!