You said..." He’s in a awkward spot right now to put my hand in front Of him. I tried to put my hand under him gently and he hissed when I touched him"...if you're worried about him biting you...put a long sleeved sweatshirt on and pull it down over your hand so there's no hand showing and try to pick him up how you were instructed. He shouldn't be able to bite you through the shirt.
Concerning free ranging....they need exposure to UVB enough to stay healthy...they need access to water and food....they need to be able to warm up when they need to. Can you orovide this if you're free ranging him Food for thought.