I have shipped doors, fenders, hoods and everything inbetween, all you have to do is build a box around it, I used OSB board and 2x3 and it worked great never had a problem.
I got a message back with my request to send a trunk lid to Florida stating that it was considered "easily damaged and uninsurable", and I was charging the guy $25 for the trunk lid, not exactly NOS Hemi stuff. But, it's their rules!