This is a film that could be applied to the inside of the glass - http://www.fsicti.com/index.php?pid=20
I think this company can also provide treated plastic sheet which could be used instead of glass for the instruments.

Peter,
This might be intersting for the side screens!
Kind regards,
BertR

2025 Plus Six - 1909
2009 Roadster
1983 4/4 4str
Board member Morgan Sports Car Club Holland ('21)