Corner pin 3D image plane to comp size using script.

Hi team, i am working on a shot which has multiple planes which need to projected with a clean plate.

The difficulty here i face is once i change the 2D image plane to 3D its changes its position,orientation and scale. So i need to manully scale the 2D image plane and use corner pin to align and fit to comp size.

This is also inaccurate as matching the 4 edges is dificult. So looking for a  ae script that would automatically create a corner pin effect to the selected 3D pane and snap to the edges of the comp in the current timline position. PFA

Thanks