Make 2D Crashing - Architecture 3D Model

I am a fourth-year architecture student in the United States and I have been trying to Make2D a ClippingPlane of a building file that I have had in Rhino for over 3 days now. The file with all of the elements in it (including the building 3D Model and surrounding buildings) is 2433MB but only 1190 with just the 3D model. I have attempted to save small, put the units in meters,Make2D it separately, and move the model to the origin but nothing seems to work. On the progress bar at the bottom right side of the screen during the Make2D, it will reach 10% for a while but eventually crash. I really need help as I have deadlines quickly approaching. Any and all suggestions/help would be greatly appreciated!