KenVette57 I do fix scratches with wet sanding. My suggestion is to start off conservative and go with the 2000 or even 2500 and then follow up with 3000. Use the Megs wet sanding block. It is a pretty simple process. I know that the Junkman2000 has a video on YouTube and he shows pretty good detail on how to do it. Plus, he is working on a Lamborghini!
I have pics I can show, however, I am Samsung Phone illiterate and my photo setting is too large. But if you look at his video you can get an idea.
If your fingernail catches the scratch you will need to touch up the area. But sanding will help repair it. You will need to follow up with a compound (me FG400 and SF4500) and Polish to bring it back to a show shine finish.
I just recently used the Langka kit and it was harder than wet sanding process. Mainly because I don't read instructions very well. However, once you know how to do use the kit it will be easy. DO NOT forget to wear latex gloves or you will get crud all over your hands.