Quite busy at the moment so just a quick one.
You must remove the fog light unit.
It's held with just one bolt at the outboard body.

The inboard side has a flat protrude section from the fog light housing and it's inserted into the slit on the front bumper lower skirt.
When removing the front bumper, you need to lift it up slightly and then pull towards your body.

Good luck with the alignment of the front bumper on installation.
Each NSX has different number of shim for alignment purpose and you need to adjust the torque figure to get the best result.
For this reason, it's my own policy not to touch the front bumper unless 100% have to.

Be careful with the fitting at the condenser.
As you are replacing the condenser itself, in better position but these are the worst fittings to deal with as they are exposed to all sorts of debris due to being at the front lower section close to the road surface and heat cycled for years.
The fitting coupler/hex is on the pipe side so be careful.

Kaz