WOW BB, I'm not sure how I missed your thread on here but that is "Technology at its Finest". I am an excavator and I have a software program that's called INSITE and it does dirt calculations to determine the quantity of cut/fill on sites to tell you how much dirt needs to be moved around on i.e. a 15 acre site for a new Walmart and it builds 3D models similar to yours when you are finished, of the existing site before you start and the same thing of the proposed site when your finished and it helps to give you an image of what it "supposed" to look like when your done. It is not as detailed as what you have but it is similar. It amazes me how far technology has come in the last 15-20 years.
The model your building is truly impressive, Keep up the Good work and keep us updated as you get further into it.
Here is a couple pictures of my frustration when I started my project back when I had a CAI (Crazy A&^ Idea) and thought I have a dream
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