So after picking up a crack from a stone hitting the windscreen in July, I finally have a new windscreen (which with a fresh MoT has allowed me back out on the road). Honda have run out of Beat windscreens so I had to source a pattern part from Japan (http://www.mr-frontglass.com/ホンダ/ビート/). Honda still do have the rubbers. In the end I had to get the windscreen sent to my family in Japan who had it wrapped properly and airfreighted over.

The Autoglass guy who fitted it said the quality of the screen was excellent (it is a Fuyao, which is Chinese. He also couldn't believe the car was 25 years old as there was no rust around the old windscreen.