Urban Art Association

Whatever you think is enough, double it. Get full insurance. Pray (if that's your thing, otherwise positive visualization). Perhaps don't use FedEx.

I imagine it was a fluke, but they destroyed my Dusty from the last Bast release (they misclassified it as "hazardous," meaning they couldn't hold it for me at a nearby facility), were extremely difficult to get any info out of, I basically had to mildly threaten to examine my legal options before they would contact me, only then they were apologetic and such. I know accidents happen (this looked like two separate "accidents," to be fair), but they were unmoved by numerous pleas for more information on my part until after the fact.

Here's a pic:

Accidents do happen, and this is the first time I've had a problem with them, but they were not particularly helpful, which is what you want if it all goes sideways, I would think. Does Flight Logistics operate out of the US? I know people on here speak very highly of them.

^right.
Most often, the cost of sending it framed vs. unframed most often allows to frame the art anew after shipping it flat. This reduces risk and makes for getting it like you want it done yourself (at no extra cost!).

I would speak to flight logistics first

Graf Air Freight

www.grafairfreight.com/

Flight Logistics just helped me to ship a Witz canvas from USA to UK and they were incredibly helpful and knowledgeable. Cannot praise them highly enough.