until we find a way to unlock the bootloader, everything here requires a high level of technical competence. Reason being is that there is a fair amount of troubleshooting involved. Even if you know how to follow instructions I do not believe one can make a noob friendly tutorial that includes ALL the troubleshooting steps.
Before there is an all in one method, best get someone who knows his/her way around a computer and an android phone to get your phone rooted.