2:37am studios has spent over 2 years in documenting downtown Detroit. We have a current autocad map that shows buildings, sidewalks, and grass layouts. The overall boundaries are from the Detroit River to 75 and the M-10 to 375 with some extra blocks as we expand a bit here and there. If you have any updated site info that you could send to us, that would help in keeping our model current. Contact the shop for possible model questions and ideas. disclaimer: model is not for sale nor totally accurate