Keep me posted of your progress.
I did deploy tools you suggested in my attempt, however in spite of having the proper tools the cleareance was to small to operate the offset O2 wrench in the space provided on the VX for the passenger side front sensor. I am sure there is a way to do it without removing the passenger side cat, but can see no other sollution at the moment.
I gained 3-5 MPG by changing out 3 oxygen sensors. With todays gas prices it is a worthy project. It also eliminated the occasional hesitation issue as well.