imported_italstallion

ok guys so i had a little accident about 2 months ago where i rear ended someone doing like 5 kms an hour no damage occures whatsoever and my paint wasnt even chipped but about 2 weeks later i used the coin-op to wash my car and it started chipping and its about 3 inches wide and 2 inches high,and i aswell have ALOT of road rash on my bumped so i will be prepping it and painting it tonite with a spray bomb .heres what i had in mind of doing to it

1.sanding with 1000 grit or smoother
2.primer
3.resand with 1200grit
4.paint.

i know it wont look the greatest but at least there wont be chips all over it.im open to any suggestion and ill try to take pictures.