The grill section is complete aside from filling in a few gaps, painting and cutting the black mesh to sit behind it.
Routed back with inlay for mesh and recesses for the aluminium:

Close-up of the recesses (over cut to give a bit of wiggle room to allow the bars to be lined up correctly:

Front:

With a temporary piece of mesh behind it:

It will look much better once it's painted black and the mesh is backed by grey vinyl.