The challenge is how to get ERSI shapefiles into a full json format.
I had MATLAB fired up and was going to generate this originally. It turns out a lot of the data are already there. Experience matters *a lot*. It took me two weeks to do this before. This time it took about 5 hours.
I still have all the MATLAB code, along with my custom gis calculations, but this puts everything into the database and is much cleaner.