Good evening Kirk and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
Is there a way to view the spaces available by ticket type on the month view calendar?
This probably could be accomplished, but it’s not a built-in feature.
The good news is that we made sure our plugins are easily customizable. You might want to read our Themer’s guide to get a sense of how that works.
As an alternative, you can hire one of our recommended customizers to do the customization for you.
which plugins do we need to purchase?
You will need to purchase only the Event Tickets plus add-on to be able to sell paid tickets: https://theeventscalendar.com/product/wordpress-event-tickets-plus/
You might also be interested in our Filter Bar plugin that allows to filter the monthly view by many types of variables (including cost – which is the closest thing to ticket type available “out of the box”): https://theeventscalendar.com/product/wordpress-events-filterbar/
Let me know if that helps.
Have a great day!
Geoff B.