Does this bumper have fog light cutouts?

No. This is a solid front cover panel. If your vehicle originally has fog lights, you'll need to cut or route the openings to match your OEM light locations before installation. Verify your factory fog light diameter and position beforehand.

Will this bumper fit if my car has factory parking sensors in the lower valance?

The bumper is a clean panel without sensor provisions. Before installing, check your vehicle's sensor hole locations on the original bumper and plan your cutout placement accordingly. Sand and prep the surface before final finishing.

Should I paint this before or after installation?

Most builders finish the bumper off the car to ensure even coverage and a clean edge where it meets the body. Sand and prep the surface thoroughly, apply primer, and finish with your color coat and clear protection before bolting it on.