Website Registration System Required

We require a registration system that will allow people to register for clinics and get access to additional pages The website is currently built in Joomla - so we are looking to have a component set up for processing registrations (RS Events?, AEC? We are willing to accept your recommendations) Registrations give people access to certain private pages for a set period of time - once the registration period ends they no longer have access to the pages people can register and pay for - learn to run running clinics - 5km running clinics - 10km running clinics - 21km running clinics - 42km running clinics Once registered/paid they will need access to their own clinic schedules (calendars - Jcal Pro OR other Calendar) - Paypal Integration - 3rd party component installation (RS Events or AEC or your recommendation) - we will provide any third party component required (RS Event, Jcal Pro etc)