Which RSVP & Event Attendance mods will work?

[rhinoForums.net]

So I've been doing a lot of searching and reading about the various RSVP, Event Attendance, and thread creation mods available, but there are so many, with different versions and different pre-requisites, I was hoping someone could help me determine exactly which ones I need, and which order they need to be installed. Thanks in advance.

After reading through the mods, I am fairly sure these things can be accomplished, I am just having a hard time sorting out which ones, and what order. Here is what I am trying to do:

A user creates an event (usually a 1-day, all day event) on the User Calendar.
This event also creates a thread in a specified forum, with the details of the event.
Other users can view the event, simply by navigating to the thread (without navigating to the calendar)
Users can RSVP yes, no, or maybe and specify how many guests will be coming.

I know this sounds pretty simple, but if you search the mods section for "rsvp" you will see how I can easily get confused.

Thank you in advance, if possible please supply links to the mods that you recommend I use. Some of these mods have multiple versions. Thanks!