There are 561 cm available ... 60 cm on the right, peninsula 100 cm, if sensible with dining table then only 100 cm row spacing is allowed there .. basically sufficient .. but, one should also plan the kitchen. Because 300 cm should definitely be granted to a dining area. In the basic drawing, the peninsula is only drawn 60 cm deep. These are often trickery from architectural drawings to simulate more spaciousness than actually exists.
Yes, we planned the kitchen with an external planner, then found our dream kitchen as a showroom kitchen, adjusted it a bit together with the external planner, and then implemented and purchased the plans at the furniture store. That fits quite well. But as mentioned, the dining table will also be a bit narrower. We have to organize the assembly ourselves.