I have a similar plan (not sure when - if ever - it will surface at the top of my todo list :-) ), but then with prescription lenses.
I want to buy cheap frames in the shape i like, so I can pop the prescription lenses out, and model my own 3d printed frames around them. That way the inside shape is fixed, but I can play with the outside shape for many iterations/shapes/colors/materials.
Your model will serve as inspiration or even a starting point to model around the lenses. So thanks for sharing!