What stuff should i use now before primer for best results

[WOLFMANmike]

Ok so ive got my interior cab mostly down to bare metal and im going to use high build primer but what stuff do you all think i need to use to prep the surface and get the best results ? Im doing it in a rattle can and so is the high build primer .... so what should be my next steps and what materials should i buy ? And how should i go about doing this next ? Thanks in advànce for your help and advice ... Happy Truckin