Hey everyone, I stripped the underside of my nova to bare metal and plan on applying pot-15. Under the car, looking at the back half, there are a few pin holes at the trunk area, Im just going to fill them and paint. Butttt for the inside of the trunk, do I need to strip the whole thing to bare metal again and apply por-15, or can I get away with sanding the existing paint down till smooth and repainting? I took a knife to the inside of the trunk and scrapped a few areas till I can see metal and there is some rust, but the trunk is not crumbling, and like I side, the underside only had a few pin holes. I’m short on time, and sanding to bare metal and prep work is the biggest pain. Would anyone know if I can get away with just sanding old paint a little and repainting, while still stopping the rust that is already there (under old paint)? Any help would be appreciated, and product recommendations would be great. Thanks in advance!