I have a Masonite (formerly Stanley) exterior steel door with two full length sidelights. This past winter, the seal on one of the lights failed. I have acquired a replacement sidelight from the manufacturer and will be installing it in a couple days. 1.) What is the best way to remove the plastic screw cover plugs? [My plan is to take a deck screw, screw it into the plastic and pull the plug out.] 2.) What is the best type of caulk to use around the replacement sidelight frame? Silicone? Acrylic? Other? Thanks.