Just at the top of this page is an icon for the ON-LINE STORE. Everything you need to buy is right there. It supports also this forum where some of the most helpful people you will ever meet reside and will answer patiently all your questions. Good luck and welcome.
My suggestions are to buy a comfortable life jacket, a spray suit or top, and check ALL the critical equipment that can injure you or a passenger if it fails. Shrouds I replaced immediately (because I couldn't tell how old they were). I also examined closely all the contact points that the shrouds connected to for signs of stress.
Depending on where you sail, a waterproof bag for a cellphone so you can call for help isn't bad either.
Good luck!
Greg
Greg