Kenny,
Looking forward to seeing you at the races. Don't worry about the smack talk, we usually leave the new guys alone, unless they come up with some crazy story...lol...Don't worry to much about set up until you know you really want to do it. For a first timer i would just try to find some used lawnmower tires, Size 18x9.5x8, for your first time. Should be able to find a set real cheap. Once you get hooked, then you can worry about lowering the trike and other set up tricks. No big secrets we all help each other with set ups.
As long as you have helmet, eye protection, gloves, long sleeve shirt, long pants, over the ankle boots and a teather switch you're good to go. A front and rear number plate should also be a minimum. Fender numbers are more for looks as the score keepers can rarely even see them.