L_bad_pixels_finder
This Node will find nan, inf and negative value.
It will solve the pixels in 3 different ways (pff filler, color fill, time offset).
ps: unfortunately I do not have nuke license, so it is in non commercial mode.
L_imagePlane
This asset will help you to find the right distance for image plane, using a stabilization as check referenze.
DOWNLOAD:coming soon
L_softer
This Node will create a blur according with the Z pass from cgused as mask.
DOWNLOAD:coming soon