Touch-up/spray a used car to increase sale value

[Blown2CV]

I have an 2004 mondeo, ink blue. It is covered in scratches and chips, and I am selling it soon. I have purchased Ford Ink blue 3-part touch-up kit and a can of same colour spray paint. I don't really know what I am doing. Is it worth me bothering? I am concerned I might quite easily make it worse, or at best might only increase value by 100 or something (the car is worth about 1200 maybe. Should I just return the paint to halfords?

[Blown2CV]

well, i've got some langka that i found in the drawer, which is kind of wet-sanding type flatting product so i think I am going to use that. I might try a small area first!