I already have GE 30" Microwave Oven Combo installed in kitchen (Model: GE JT965BF2BB).
It needs to be removed and haul away.
I have a new Kenmore Elite Unit that needs to Installed: [url removed, login to view]
Although they both are 30" and similar dimensions but might need slight adjustment/cutting to cabinet install the new unit as they are from different brands. If require some cutting then care needs to be taken to be it minimal and not visible as I do not want my kitchen cabinets to spoil during this installation.