I have a hollow-core metal door out to my car port, and it gets a lot of traffic. I'd like to add a kick-down door stop to the door. I think one option is to drill pilot holes and use self-tapping screws to secure the stop to the front part of the door. But I'm worried that this will bend the door's sheet metal. Should I instead drill all the way through the door and bolt the door stop to a plate on the other side? If so, is there any way to make that look nice?