About the hides, also remember it will take a week or so for him to settle in and get comfortable in his new surroundings, so be patient with him.
I recently got a young female who was rack raised and had never been provided a hide. Since I do have a rack system, but I use taller tubs than most people I use hides. For the first few days, I think she was convinced the hide was going to eat her. She couldn't stay far enough away from it. For the next several days she slept on top of or behind the hide. Finally, by gently placing the hide over top of her after each feeding, she discovered these hide things are pretty cool.
Now she is just like my others, she lives under her hide happily, and frequently pokes her head out to be sure she isn't missing something important.
Gale