radio dash kits - what are you guys using?

[paradigm]

On Metra's site I see 4 options pop up, however I am not sure if they will work for me as I do not have the factory radio bracket. I am going to install a single din aftermarket head unit as I cannot seem to find a factory radio to install. Initially I was going to go with a double din and use a reverse camera, however it is not fitting below the factory HVAC control.

Which kit would you advise? Apparently the Scosche kits do not fit the Monte Carlo.

Metra lists all of these:

 

[Maverick's_Monte]

I have a single DIN set up, the dash kit for which I remember purchasing from Best Buy. Most of those places still have a car audio department, or at least they did. The install shop sold me one from behind the counter.