Welcome to the 300 club!! My son just picked up a 300 as his first bike also, you have made an excellent choice. Spend money on a good helmet, most important investment you will ever make, gloves are next, if you hit the ground skin leaves the body really quickly. And please dont ride without boots, shoes just dont cut it!! Enjoy the ride
Welcome. If you buy your gear online go to a store that carries what you want first to make sure it fits you right, and you feel comfortable in it. Riding with gear that is uncomfortable or annoying will distract you and will put you at risk. If you wear rx glasses make sure they work with your helmet.
Nice choice of bike.