Hi there! Thanks so much for your interest in our plugins–I’d be happy to take some time to answer your questions here! 🙂
I’m pleased to report that all of the features you’ve listed are possible with Event Tickets Plus running alongside The Events Calendar (or Events Calendar PRO) and Event Tickets! The Events Calendar (free) or Events Calendar PRO (premium) would provide your basic calendar and event functionality, while Event Tickets (free) adds core ticketing functionality, and Event Tickets Plus builds on that with support for paid ticketing through the e-commerce platform of your choice. WooCommerce is a popular choice and supports PayPal payments right out of the box!
Our Knowledgebase has more detailed information on making tickets and managing orders, including options for limiting stock to cap sales at a certain number of tickets.
Let me know if you should have any other questions about our products or how they might work for your site! Thanks again for stopping by!