protection

I am going to drill some holes (5 mm) and spray some Krown in hollow panels. I was thinking of drilling all 5 doors, middle/above of rocker panels, above rear wheel arches, maybe somewhere on the bonnet. Does anyone have some suggestions of exact drill hole locations?

Good day all, I'm a new 100 series owner (2004 model), and am looking for a boot/cargo liner with holes for the 3rd row seat fastening points. Are these available, or is there a better option? Many thanks in advance for any help. Thanks, David