Wordpress Website Users from Invite Code for Event Website

The user flow for this experience will be as follows: 1. We are printing 250 membership cards that will be handed out to past attendees and family/friends for free - Each card will be numbered sequentially 00000 - 000250 and there will be a URL printed on a postcard that has their invite code 2. Each person will go to that URL (can provide a page design) and type in their invite number to begin the registration process - Maybe you use this plugin: [login to view URL] - If they don't have a number they can click a button to contact an email address 3. The registration form will include the following fields: - Full Name* - Email Address* - Address - City - State - Zip - username* - password* - opt-in for enewsletter 4. A successful registration will send them to a confirmation screen and send them an custom designed email receipt with their username, password and instructions 5. Members will then need to login to access new event pages 6. They will then be able to access events that will be under a new nav item (called MEMBERS ONLY or something like that) - Moving forward, events that are added will need to option of being public facing or behind the membership login - There will still be teaser information on the homepage, but when clicked on it will direct to the login page (if not already signed in) This will all have to be incorporated into an existing LIVE Wordpress site