Lizard Frozen 2 split apart

As I mentioned in one of the comments, the original .obj file was very difficult to print. There were 4 surfaces that were not "unioned" together and so my slicer was having trouble rendering them. (Simplify3d).The basic problem is that it is very difficult to figure where exactly two parts overlap. Often the slicer ends up "exclusive oring" the two shapes, and where there are 2 shapes overlapping, you end up with nothing, which means the two parts do not really join.

So the files are:
lizard_highpoly_X.stl the 4 shapes separated
lizard_lowpoly_X.stl the 4 shapes separated

In order to make these I had to convert the .obj to an STL:
loaded the .obj file into simpify3d and then did a File->export Models->Export Binary STL

Then I wrote some fairly complicated code to split out the overlapping shapes and write out the new STL files and the new .scad files. (I will share this later if I can figure out how to package it up) UPDATE: I have it packaged up, but I can't pos