first,thanks for your kind words above
on to your next question:
yup,this is the newest(as of today) official ruu for the t mobile one,and is exactly what you need.
rest assured,while s-on is a PITA sometimes,it will not let you screw anything up.
you do not really need all the info in the link provided since you are s-on. all you need to do,is relock your bootloader,then run the .exe file as administrator if your version of windows permits that. follow the on screen directions and it will return you to stock.
it should get rid of your tampered
badge,but unfortunately the best you can do with the bootloader while s on is relocked
. shouldnt matter much,as the blurry camera is a know issue.
just holler if you have any further questions