[Arran]

With regard to the early 40s Philco grilles that Ron mentioned, I think that there would be a greater market then only a few dozen per year since there are hundreds and hundreds of sets that use these grilles and they all have the same deterioration problem. My thought is that since the 47-204 uses the same grille but does not have the deterioration problem it would greatly simplify the process of making a mold for the earlier sets.
The eight and nine pushbutton plastic escutcheons for models like the 41-280 42-380 are already out there fortunately. Unfortunately if you have a ten pushbutton model from the 1942 model year you are out of luck, which is really too bad. As for the Silvertone sets those probably had the worst plastic escutcheons of any set, there are some models that you never see with a bezzel intact, even a warped one.
Regards
Arran