mini tubbing my scamp

i am in the begining stages of mini tubbing my scamp. i was wondering if any of you guys have done this before and if you have any tips tricks or pictures to help out. any and all advise is well appriciated. i am also going to move my leaf springs in at the same time from what i have looked at so far guys are saying after doing this they are able to fit a 12.5 tire with the right wheel