I recently purchased a 2012 Coachman Freelander 26QB. The coach has a small microwave and a 3-burner stove, but it does not have an oven so I'm considering having one installed. As we don't use the microwave (other than to store bread) it was suggested to me that I replace the microwave with a combination convection/microwave oven. This makes sense to me but I am not sure which models would be best and also, can I purchase one off the shelf at my local appliance dealer? Any advice would be appreciated. Thanks in advance.