"Dont take this in the wrong way , but you are a body Tech and dont know how to go from start to finsh on a complete vehicle?

I would strip all the paint off (most likely lacquer if original or Acrylic Enamel if its been painted before)
with an 8" Mud Hog with 80 grit, this will help on keeping sand scratches to a minimum. Fix your damage , then prime with a good K2 primer , block sand with 180-220 grit, reprime and block down with 400-500 wet or dry.
The seal and spray with a good base coat/clear coat.''


i agree with evey thing exept i'd go down to bare metal and us a urathan based primer it fills in surface scatchs real good and builds up a good thick primer so you dont have to reprime when your wet sanding

just my 2 cents