Re: shipping a neck
If you can't find the original Warmoth box, you could do this, I get a long triangular box from Fed Ex, turn it inside out and tape it up real good, bubble wrap the neck, and use that to ship, it's about a perfect size for necks, a bit long but that's ok.
I usually ship FedEx Ground as you get the first $100 insurance free, or USPS Priority Mail.