I have a 2011 BC 3500 RL with a microwave. I am wanting a convection oven instead. The dealership told me the whole cabinet would have to be replaced to get the convection oven in place of the microwave. We live in our full time and the heat from the oven is just too much during the summer and my wife loves to bake. Is this true or can I just order the convection oven that you put in and install it. Thank you for your help.