Crack in Tailgate Repair / 2003 Trailblazer?
 

I just purchased a 2003 Chevy Trailblazer.
It has a few dings around the vehicle, which I intend to address.
The tailgate is the worst of it where there is a large ding and a crack in what appears to be a plastic piece surrounding the license tag area.

I would like to fix the tailgate first.
The ding should be SOP for a dent removal specialist.
My concern is how do I remove and replace the plastic piece containing the crack?

Pictures:
https://blazerforum.com/forum/attach...ine=1480968866
https://blazerforum.com/forum/attach...ine=1480968866