That microchip door sounds pretty interesting. I've only had one critter intrusion in 10 years of having dog doors. Put it in the wall. It's easy to do and easy to recover from. Plus, having the dog door in the people door is a pain.
Our dogs are relatively clean, but you can see what a mess they make.
I made this 1/4 inch plywood panel to cover the door when I don't want critters coming in or dogs going out.
We have 2 six foot runners inside the door to get most of the mud & water the pups drag in.
Madison approves of her doggie door. (OK - shameless, gratuitous photo of my dog)