I need to get all the info so i know how to ship snakes the best. so that i can send the box to fedex for testing and what not.

is it easier to go to say Uhaul to buy boxes and buy a pack of polyfoam and make my own insulated box.

OR

Buy one complete set and what site is best that provides good material i.e box styro foam,heat packs. i was planning on buying the heat packs from reptilebasics if i had to make my own box.