Change the floor plan of an old house with little effort

we want to change the floor plan of an old house

I will happily take a look at it tomorrow. You should use the time until then to show the old plans here - preferably including the basement and cross-section. And of course all four of the new ones: both alternatives each for the ground floor and upper floor! It would also be helpful to know the age of the house (I'm already too tired to estimate now).