Slot it Alfa 33/3 white body kit

Hi all! Eventually I had do it! Bought a Alfa 33/3 white body kit from slot.it. Asking myself how to do a professional paintig without having any knowledge about the hints and fingertips. Does anyone know a link to a painting instruction? Especially I am in need of explanation about the preparing of the body (Cleaning, grounding, sanding..)? Any comments wellcome. Thanks a lot. Regards Jens