Good luck! Smile and have fun, thats all that matters at the end of the day!
Not heard of "best hunter" before, but im guessing it's like ridden hunter. So i would say ridden gear - no boots for the horse, you will have to walk, trot and canter round together and possibly gallop. In your show - walk, trot both reins, canter both reins, show a good extention. If you have a cane, maybe carry that instead of whip (if horse doent need it). Tweed jacket for you. Good luck!!