I guess I'll just root and try to get everything set up the way I had it on my original S3 then if it ends up being too much trouble I'll just restore a nandroid.
I'm not toooo concerned about tripping Knox because my warranty bit was tripped on my original S3 and I had no problem getting it replaced by Sprint. I don't think they even bothered to check if my phone was rooted or the warranty bit tripped. I think they just checked for physical & water damage, my phone didn't have so much as a scratch on it.
This is a bit off topic but anyone know if there are known issues to rooting this phone with the saferoot method? That thread is a beast to dig through.