I am building a model of a historic railroad station that has a curved wall at one end and the roof transitions from a normal gable to curve around it.
I have a decent idea of what it should look like, but I am struggling in how to create it. I have limited plans which I have uploaded to my Google Drive as well as the few pictures I have showing the curved end.
I am a beginner with any architectural programs and am not an architect, but have extensive experience in CAD software. I have a rough model of this building in Sketchup, but I want it modeled so it can be modified if needed without completely redoing it.