Question [Q] Looking for a step by step guide to load a custom rom on LG-VS980

Hi all,

I have never flashed a custom rom on a phone before so this is very new to me. I want to flash the following rom to my phone, but don't want to brick my phone.

Is there a guide or anyone one willing to take the time to guide me through how to do this. I have downloaded and installed JDK and the ADT bundle. I have also downloaded TWRP 2.7 for my phone, and also the image from XDABBEB's thread. After that, I don't know where to begin.