You can save yourself some money by removing the front bumper and taking it in to a body shop for paint and repair.
Scratches are usually sandable with a light skim coat of body filler.
Primer the areas.
Wet sand the entire bumper.
paint and shoot it.
Base coat clear coat.
You could easily do this in your garage or a shop will charge you in excess of $500 to do so.
Cause they charge you for R R,
R I time at a body shop rate.
R R = Remove and replace.
R I = Remove and inspect.
And hold on to your car for a week or so.