You are in for a whole bunch of fun. You also made a great deal, on that TC Grey-Hawk as it is a good brush gun. I'm just jealous I didn't run into it. Be careful, for even though it has a SS finish, it will still rust out if you don't keep and eye on it. .....
I too recommend Sam Fadala's books. Lyman has current issue on one of his books. I happen to own about five of his books and when I run into a young student, I loan one of my books out. Don't forget to come back and ask as there a bunch of great guys in here, willing to be supportive. ....
Enjoy and;
Be Safe !!!