Event Registration & Attendee Management

I am building a event page with info about the event on Wordpress. I need a Registration and Management plugin to be made. Need the following functions: 1) Front end page with registration form, progress indicator, ability to add multiple attendees information and integration with Paypal gateway for payment. 2) Automated sending of confirmation email, with auto unique ID and QR code generation. Dialog box in CMS for HTML email code. 3) Able to view, sort, edit individual registration listing. (Each attendee is one line) (payment status need not be recorded in table as unsuccessful payment means registration failed. 4) Able to activate sending of confirmation email again from backend 5) Able to export data to CSV at anytime 6) Confirmation email must contain auto generated username and password for users to enter system to modify their details. Users cannot remove tickets that they have already paid for, but can buy more packages. Checkout system must bill them for additional amount to confirm changes. Event involves Conference Fee + Hotel Fee (Optional) + Flight Fee (Optional) + Tour Package Fee (Optional). So registration form must be in stages, like booking conference fee with add ons. And the Subtotal amount is always dynamically changing. I will design the layout. Project MUST BE COMPLETED by 27th January.