came to 16.5 feet (198inches) because of the place where Enterprise will be installed. She will go in a 20feet by 10feet train car, another project we have going.
The primary hull of Enterprise served to determine how wide we could go and leave enough room to walk around. At 198inches long, the primary hull comes to 7.92feet (95.02inches)
Also had to do with how small i am comfortable to work at with my equipment vs the details i wanted to include such as figurines and lit consoles.