Looking for an event registration/online training plug in

I am NEW NEW NEW to word press and before I get too far into it I want to see if it can handle all of the CMS capabilities our company requires. Right now I am looking for some sort of plug-in or combination of plug-ins that can perform the following tasks.

Background… we run a website called NorvellUniversity.com. (Our current site is HORRID!) The site is a B2B training program. What this is a combination of online and onsite training seminars, so what we need is some sort of Learning Management Software, but this is not your typical online learning environment. We would like our website to offer the following functionality:

1. User Accounts with Log-in.

2. Interactive Event Calendar & Event Registration where the customer can go online and see a full list of upcoming training sessions, register and pay for their course online using Authorize.net. After payment is made it needs to notify us to process their registration either by email or dump into some sort of easily accessible database. I think I have the solution but if anyone can offer additional options it will be much appreciated.

Event Registration Management – I found this one online https://wp-events-plugin.com/pricing/ and it appears to have all of the features I require.

3. Then we require some sort of online training session which is self paced by the user (not interactive). The customer would register for the online class, pay online through Authorize.net, upon payment receipt they would be able to access the course content which would consist of the following: Course Workbook (PDF flip book) or download the Workbook, View Videos, Complete a course test. When the test is complete it needs to notify us to process their certification and mail their materials either by email or dump into some sort of easily accessible database.

I hope that someone here with more WordPress knowledge can shed some light on the best direction to achieve the above.

Thank You
Kristi Stewart