We upgraded to multifunction MW units, so don't need these:
Maytag 1000watt with all paperwork & hardware for mounting, including hole template. This unit has a unique sliding tray so you can put in a 6" x 9" rectangular dish. $25
LG 1000Watt with all paperwork & hardware for mounting, including hole template. 2020 model, $60
I will boil some water for you so you know they work OK.