Supporting timber-framed wall - Removal of beams

attached is the floor plan

A section would be good as well. The walls look unusually straight in the drawing, and I am confused by the wall thicknesses 38 and 25, which correspond to Reich format bricks. Also show some pictures of the building from the outside.
The drawing looks like a professional survey, so why doesn’t the renovation planning continue in the same way?

A section would still be good. The walls look unusually straight in the drawing, and the wall thicknesses 38 and 25, which correspond to reichsformat bricks, confuse me. Also show some pictures of the building from the outside. The drawing looks like a professional survey, so why doesn’t it continue like that in the renovation planning?

Hey, the house is from 1908. I created the plans myself and I also took the measurements myself and measured every spot. Attached are also the exterior view and a section.

I unfortunately assume that there will be no further posts here. :(
Thanks anyway.

The only sensible response is to consult a structural engineer or a carpenter who has experience with half-timbered old buildings. A carpenter who says that 4 meters without supports is no problem does not sound suitable for an assessment to me.