Labor
Sorry for the confusion about the apartment. I read the unit description and leaped to an unfounded assumption. Not the first time, but I do apologize.
However, that said, NEC code says that the combined Range/Oven will operate at 240 VAC with an ampacity of 40 amps, max. It makes no distinction between an apartment or a single dwelling residence.
By code, you will need a 40 amp Dual Pole, Single Throw breaker. Using #8/3 cable you connect the Black lead to one pole and the Red lead to the other pole. Ground and Neutral will connect to their respective bus bars. One lead per hole, do not double up the leads. Make sure that you leave enough wire to reach the bus bars.
Snake your wire to the panel first, add the outlet box in the kitchen. Place the box within six inches off the floor. Purchase a four port receptacle and face plate and a four wire range/oven line cord. On the unit, disconnect the ground lead. Place Black lead on one pole, the Red on the other pole. Neutral and Ground are connected as diagrammed. At the wall, install the outlet, connecting the leads as indicated on the back of the receptacle.
Now install the faceplate. Back at the panel, turn off the panel, connect the Black and Red leads to the breaker and install the breaker. Then cut the White and Ground leads to fit the length needed to Range Breaker on.