Which module best to use when you run a venue event management business?

Which module best to use when you run a venue event management business?

Dear Zoho community,

We are opening a venue in a couple of weeks where we rent out a board room, a stage, an entire auditorium and a studio for speakers, events, etc. This will include catering. 

In order to create a system where I can track events, sales, inventory, calender, etc. I have been looking at the modules:

- Backstage
- Bookings
- Event Management
- Calender
- Meetings
- Inventory
- Checkout
- Invoice
- Create

However, I still can not fully comprehend which module would suit best in our situation. Initially I thought Backstage suited our demands best, however, we might not need to the customer facing features as much since our clients will use their own link where customers can sign up for the event etc. 

The Bookings module seemed a fit, however I believe this module is more helpful for internal use? 

I am a little bit lost and unfortunately can not make it to the Zoho event this coming Thursday 12th of October. Therefore I thought I would ask for help here.

Thank you in advance. Kind regards,
Eline de Vrij
Neherlab Auditorium B.V. 
The Netherlands