Looking to install a back up camera in my 2011 Sierra 1500 SLE

There seems to be a lot of options out there, but I want it to be in my display. I don't have to bolt anything on top of my dash. It looks like there are plenty of camera options that i can get that replaces the tailgate handle.

So I'm wondering if it makes sense to get a GMC factory screen/navigation/radio which came on the Denali version of the truck. Would it display the back up camera on that? Or would an aftermarket item like the Pioneer MVH-1400NEX make more sense.

Since the truck doesn't have any sort of back up camera, would it be able to easily be able to trigger the screen/camera?

any help would be greatly appreciated.