Hi Janna, thanks for getting in touch!
Customizing the event template is actually possible with just the free version of The Events Calendar. It will take a little bit of custom development, but I’d suggest checking out our Themer’s Guide for a detailed overview of how to override and modify the plugin’s templates.
You asked about discounts for non-profits. We do indeed have a non-profit program where you could receive a free license for our products if you meet the requirements. Please feel free to see those requirements here and we hope you apply!
Does this help answer your questions? Please let me know. 🙂
Cheers!
Geoff