hmmmm. I see you have been busy during the night behind my back.......lol.
I guess that te CAT was at Gary's place then.....
Lets hope it is going to be a nice straight swap for your car then. If by any chance you have to use the spare O2 sensor for blanking a hole, make sure you tuck in the connector end of the wire through a hole that goes inside the car. That way, when inspected, it will look as if it is plugged in somewhere in the car....