I didn't see this listed anywhere but I'm hoping someone can give me some insight.

I'm looking for a calendar function (reserve item for a certain time period/black out dates) to use for a rental business.
Also, are there admin notifications/reminders that can be set-up?
For example, verify rented item returned and mark it available in inventory again.

Has anyone done something similar? How easy is it to customize?
Thanks for your help!
Martha