MacQueen

https://www.youtube.com/watch?v=UEJbKLZ7RmM

CAUTION! Be very careful with the clear paint to avoid “alligatoring”. First, a dusting. Then wait at least 20 minutes (NOT 5 minutes) between light coats until you're happy. A wet coat at any stage can result in “alligatoring”. I have experienced this – requirinf do-overs.

AutoZone or AdvanceAuto should have a “variety pack” of the sandpaper grades you need.