I handle my snakes almost daily, you've had lots of time to settle your guys in, so you should be fine to handle them now. Start it out for short periods and lengthen it. I used to have my corn out for over 5 hours a day, my ball is a little shier, so I don't handle him quite as much. About an hour a week total for him, or if I take him outside to explore I'll have him out for an hour or so. Just watch the snakes behavior and you'll know about how long they can handle being out