I've managed complete the tremolo system. I could further refine, but I think getting so much detail into such a little area would be a bit excessive. The only other area to model is the head stock and tuners. However, I'm not sure if I will do that for the composition I want. So, I believe all the initial modeling is complete.

The next step is to apply a smooth around all the pieces that need it, then start on a clay render. After that, it's a matter of applying textures to create the final render.