Topic floor plan evaluation. please do not digress.
You can be happy about my connections and good conditions.
By the way; I have subcontracted many positions myself (sanitary + heating, electrical, master roofer (self-employed) is an uncle of my girlfriend, painter, tiler, carpenter) this saves a lot and if simple shapes are chosen for the floor plan (no projections etc.); doors+floors+windows+front door come from a friendly dealer including installation. In the bathroom, tiles are naturally sometimes only half-height, and for the floor I chose vinyl instead of parquet, for example. The sanitary objects are not stock items but were picked from catalogs
(Credo basically price-performance is great).
But that is another topic and everyone should be able to calculate here. Calculation tips belong in another subforum.