Illustrations of buildings

I need illustrations done on buildings to look somewhat like the attached image. I will provide a photograph. I don't want the buildings to be a tight drawing want it to be loose and somewhat abstract but still need to be able to identify what building it is.
I will then use that illustration to make a 3d model and carve a master make a mold and add up to 12 buildings in a finished sculpture. I will be doing many US cities over the next several years. Does not need to be in color. Color will be added to my finished sculpture. I would like each building to cost between $8-15 depending on difficulty of each image.