Events Calendar Plugin

Hey all, can I get input from y'all. My non-profit uses the Events Calendar Plugin for their "events" page. Now, I read that I could potentially create my own "events" landing page and subsequent single "event" templates without the plugin? Is this correct? I'm asking because I have a renewal coming up for the plugin that the non-profit would love to not have to pay to save money.
One more caveat, they also utilize "Events Tickets Plus" to sell their own tickets, which runs off of the Events Calendar Plugin.
Mak . I'd really love to get your take on this as well.