I just put a few numbers together of course without seeing the car, to repair rock chip on the leading edges of the hood and l and r fenders and to blend the color onto the tops of the fenders for a good color match,basecoat/clearcoat with ICI autocolor 700.00-800.00.I have been doing body/paint work everyday since 1976. When i started,the finest grit of sandpaper was 600. We used that grit to wet sand and buff Laq. Boy have things changed,now you can get 4000. hope this helps you decide.