In the original negative, I included the small vent on the bottom, near the door. Visible in the google image. I decided later that I prefer to leave it out in the print as it's too distracting. So, that area and a bit on the bottom and top are taped out. The resulting carbon contact print is slightly smaller than 8x10. To retain the correct orientation of the image, I have to print the negative with its base side in contact with the tissue. Some sharpness is lost because of this. I could have printed it backwards, but having the buggy on the left side facing out, bothered me...
Oh, and I wanted to also say that quite often I use frosted mylar and very soft pencil for dodging/burning. This allowed me to lightened the areas on the wall and wheels. The mylar is laid on top of the negative. A lot of trial and error is involved!!