Another idea. . .
If you have your original bezel, or access to one, you can do your own vacuum form.
Build a box out of plywood to mount the bezel securely.
Build a frame to hold your plastic of choice.
Heat your plastic of choice until it starts to sag.
Put your frame over the bezel and box.
Turn on your shop-vac and suck the plastic down over your mould.
Thats the simple explanation. Here is a YouTube video as reference.
(In my thread, I heavily modified what I thought was a bezel for my '74 project. Turns out, it was a few years newer and the light and wiper switch areas were wrong. I wasted a lot of time and money missing that, so I will be selling it on this forum at some point in the future. You can read about it and get some ideas if you want.)
https://www.youtube.com/watch?v=50-sR54UBgY
https://www.youtube.com/watch?v=6d_nkRzQiDw