I had to replace the microwave in my last camper. The microwave was secured to the bottom of the cabinet by screws that actually came through those little feet on the bottom of the microwave. So the screws went all the way through the bottom of the cabinet. Replacing was no trouble but I did have to drill new holes to match the new microwave feet. The biggest problem with removing the trim and making it match because the new microwave was a little bit smaller. A little creativity and it worked out great. Got them a new microwave from Walmart and it sold with the camper when we traded. It was a little good microwaves. Not sure how the current camper has. Good job there, hope it works well for you.