Does this bumper have sensor holes or fog light cutouts pre-drilled?

No. This cover ships as a solid blank panel. You'll need to drill or route any sensor holes, parking sensor cutouts, or fog holes to match your specific setup or OEM configuration.

Should I paint this before or after installation?

Most builders prefer to paint off the car for better coverage and finish control. The surface takes paint well either way, but masking around body lines is easier when the bumper is on a work table.

Will this clear my factory hitch or rear accessories?

Confirm your exact hitch height and accessory positions before final fitment. The GP-1 profile sits lower than stock, so measure the clearance between your current setup and the new bumper line.