Found a rom, help a noob

[mled203]

[ROM]|Purely AOSP|JB|Simple, Stock, Stable and Bugless - xda-developers

So I want to have this rom on my gnex, but I need help, anyone able to guide through the process of rooting, backing up app data, flashing this rom and gapps?

 

[Reno Skyy]

http://forum.xda-developers.com/showthread.php?t=1614827

Sent from my Galaxy Nexus using Tapatalk 2

 

[mled203]

I have a Mac...

I'm Bat Wayne! I mean I'm Bruce Man! I mean I'm Batman!