Hello and welcome! Shipping chameleons seems a little sketchy but really its quite safe. My most recent cham was shipped to me. What breeders do is they overnight the chameleon so you'll get it the next morning. They have days that they will only ship like Tuesday and Wednesday due to those typically being the slower mailing days and then they also check the temps all along the way from where the cham is coming from to their new home to make sure that is all safe as well. Most breeders only ship hub to hub so you'll have to pick baby up at your nearest FedEx hub for example. That way they are not on a truck without temp control and then possibly sitting on your porch in unknown temps as well.
Here is a video on how it works:
Also I know FramsChams has veileds occasionally, if you do choose to try shipping a cham, they are who I would recommend as a good breeder