I e-mailed GMP about this kit and they sent one out to me immediately.
Following your great step by step instructions I had the original parts removed and the car prepped waiting for the replacement kit to arrive.
Fortunately the bumper came off intact and only one of the exhausts needed to have the alignment hole reamed out so I had minimal prep to do.
On the day the kit arrived it took me all of about 10 minutes effort to install the new parts.
The result were great.