Vitto - for what its worth - just some initial thoughts. I tried to look at your space thinking about having at least one 072 loop. You could lay in a second main line parallel. With the entrance doors on the right side you will need space for visitors, this gives between 4 to 6 feet before getting into the layout. Above and below the doors would give you room for sidings and yards. The one below the doors could be a dock area or other industry. The area above the doors has a lot of room to play with - maybe a town with subway loop or trolleys. Since this is an around the room configuration the middle would be open. There are possibilities for reversing loops. If you can get away with tighter curves you shrink the curves by 20 inches, which gives a lot more room. I am kind of thinking the long run adjoining the furnace could be sectional so could be moved out of the way if necessary. You could also work in a peninsula to take advantage of the large middle area. You have plenty of run for an elevation change. (scarm file is attached)
As I built my layouts, I found the curves took up way more space than I realized. And became the primary reason I bought Scarm - so I did not get halfway through laying track and benchwork and realize my design wouldn't work.
