Can someone provide advice on installing a Lamona oven in Howdens kitchen cabinets? I understand that surfaces and materials need to be heat resistant, and the cabinets must be set level. Also, if there's a drawer beneath the oven, a shelf installation is required. I found some general installation guidelines https://mans.io/files/viewer/534832/19, but I'm looking for more specific insights or personal experiences. Does anyone have tips or additional resources to share?