The photo above shows the locations of cuts to the extra walls. On the left (left end wall) the cut was made next to the window and also cut off the connecting tabs. The middle set (right end wall) is the front facing window also cutting off the tabs. The right wall (front wall) was broken just passed the door, so that came off first then the final cut close to the window. I left the clock in place and may cut off the clock on the diner.