Hello. I am new to body work so please bear with my stupid question! I am having alot of rust pop up at the line where my running boards are. I would like to sand this rust off and put in some type of herculiner or something similiar. My question is this, after herculiner is on can running boards be reattached no problem? I know many people hate the running boards, but I am small and need them to stand on to buckle in a kid in the middle seatbelt. For me they do serve a purpose!! any info is helpful. also best sanding tips?