From what i've gathered i have the following options;
- DL and flash stock rom direct from google, reroot and re install recovery (i used wugs toolkit first time round; but i'd rather avoid having to reroot and re-install the recovery if i can)
- Flash one of the currently rooted roms in Android Development (this is likely going to be the 'root' i go down; why would i need to flash the radio and or bootloader update???)
I'm just making sure i'm not making this more complicated than it needs to be; that is to say, make sure there isn't an easier method.
p.s. The reason behind using stock rooted rom is simple, i was using Xposed Frameworks and came across Gravity Box, the number of options on it are mind boggling, and i feel it gives me greater control over my phone.