I had the hood deck lid and valances done by a professional blaster. The area under the trunk is only 10" x maybe 36" the battery tray area is 6"x6" not worth hauling the car 20 miles to get it done. I doubt it will take me 3 hours to do it myself and I get to learn something. Hopefully I don't learn that sand blasting sucks and I should have driven the 40 mile round trip.