Alan,
that's really good.
I confirm that the headlight tape and covers were there to protect the light covers until dark. The Perspex was very vunerable and would also crack with being hammered by small debris. It has happened on my replica 917K so I use polycarbonate covers now, but it still gets dreadfully "spattered".
The cars were not tatty to start with, but soon became so ,once the race started as very lightweight bodywork, thin paint, etc,etc, to make them so light, would soon show wear. My own one looks very playworn even though it does not get the long distance races that the originals in period were subjected to. The very design and shape seems to attract more bombardment than any other car I have come across, and the windscreens are particularly prone to chips and cracking.
Let us all know if you do some prints please.