Regarding lenses, Dave at D&D Automobilia advertises that he can do lenses, and the materials he uses are UV resistant:
http://danddautomobilia.com/Lenses.html
Dave isn't cheap or fast (backlog of work), but quality is paramount.
As for parts I might like to see, I'm asking a friend to 3D print a set of '63 power seat track covers for me (I managed to salvage one from the car in the yard from which my power bench seat setup originated). Those things are nearly impossible to find, even used. If we do go through with the project, I'll see whether we (he) could do a few sets on demand in correct colors, and I'll post to the appropriate forum.