Order 2 fig trees from JF&E, and take notes.
One key, is weight, use a very light potting mix this will help keep the costs down. Also make sure that the soil is not overly wet, this is additional weight and not nessisary. ... don't ship dry, bad for the fig.
Gently insert a piece of bamboo ALL THE WAY to the bottom of the pot, cut it off at the hight of the shipping box.
Fill the void in the top of the pot with news paper then vigorously wrap the pot in shrink wrap. The whole thing everywhere, make it water tight basically (this is a two person job typically). Shrink wrap can be bought fairly cheaply at Home Depot or simular.
Be sure the box is of proper size for the pot and tree, don't be afraid to trim the tree height if needed, that is what the nurseries do. Insert and seal.
If shipping two trees, after putting in the first tree, lay the box over on its side and gingerly insert the second tree upside down.
The bamboo of each pot should pass the other on the side and touch the other end of the box. This will protect the trees from moving, they are essentially locked in place. And the pot protection will keep the soil and root system in check. Be sure to use a heavy duty box to attempt to avoid catastrophic damage during shipping.
The buyer may want to opt to pay a little bit more for faster shipping as well, it is often worth it.