The first time I ever did this was traumatic but I get it now. The clear will easily fill these scratches so never fear....
_Lightly_ scuff the finish with a red scotch bright (~400 grit). Notice how the junk just jumps out at you... spray on some W&G remover and gently sand it out with 800. Depending on what it is you may not get it all out. I will pick at it with a fingernail and if it comes out that is great. It leave a depression but there is base under it and the next 4 coats will fill it up and you will never know it was there.
Dry you would flip out looking at it but the W&G remover mimics more clear and with that film on it filling the scratches it looks perfect, if you don't sand through.... sand through the clear and your life can become miserable. SPI solid base easy, spray on some more to blend it and done. This Motobase metallic.... way more problematic.... It is better to leave a tiny imperfection than dealing with what happens if you sand through....
She is all done ready to get slammed with 2 coats in the morning before work.