I decided on the width of the model and I took the old photo I have and sized it proportionally in CAD, then I decided to experiment with making the sides “torn” so I could get a better idea the effect. I think with the right amount of “tear” texture it will be just what I had in mind. Maybe adding about 50% more raggedness and rounding/curving the tear here and there on the clay model will do it, the CAD version is just a real quick/easy use of polygon hiding. Oh and if anyone is wondering about the street name “Desbrosses” street and how it might be pronounced, this…