A couple of aesthetic things.
You may be able to resolve the gaps from the ill-fitting knob bezels by getting some stock ones.
You can hide the speakers from showing through the speaker grill by installing metal window screen, painted black, to the back side of the grill slots. That is what was done with original radios.
52Carl,
Thanks man. Never really think about the knobs anymore and nobody has noticed it. Using window screen is a good idea. The wife and I kinda like the looks of the speakers showing through. I guess everyone's preference is different.