Took some pics of my car at lunch...
No restriction to lower part of rad...
Through grille...
If aux fan is removed, the plastic fan housing 'bits' go - so would increase surface area airflow?
Same for lower part of aux fan frame?
I don't know what the black 'tube' part and the upper silver 'tube' bit sandwiched inbetween the aux fan AC rad are exactly - presumably to do with the AC - so both would stay?
Even if both OEM fans are removed, guessing the plastic exit 'shrouds' would stay to drag air out from the back of engine radiator and stop it spilling to the sides of engine bay
Probably a few thick questions but probably easier to get thoughts going with some photos.
Also, looking at the pics, first improvement could be had with cleaning out the fins on front AC rad...