[Perfectlap]

My mechanic, about as straight shooting a shop I've ever dealt with, didn't say the job wasn't DIY. ...But that you probably shouldn't try this as a DIY because the margin for error here can be game over if you get it even a little wrong.
When you consider the importance of doing this job right, the labor charge is modest in my opinion. Better to save money on another job that can be un-fixed if you botch it.