[dreamingISdrifting]

Painting 101, Rule #1: Paint Hides NOTHING, Paint is meant to enhance the detail or change the color of what you are painting, not to cover it up. So in short, no it will not cover any of the scratches up, you have to sand them down really fine with 800+ Grit sand paper if you want a clean, silky smooth finish.

Oh and I have another suggestion,, pack the putty in more, if you leave those little holes for air the putty will be weak and break. And as for the spoiler its all up to you, are you going for a BA look or stock look? I personally like no spoiler but its up to you.