PGI (Protector Autoglass) who make windscreens for most kit cars in Australia have stopped manufacturing windscreens and shut down their factory in Brisbane. They will now source their auto glass from overseas. The bad news for owners of kit cars in Australia is they supplied a large number of kit cars in Australia with windscreens and rear windows. The windscreens for the kit cars may no longer be available as they are unsure wether these will be made overseas.
From page 202 of the attached link shows the list of kit cars and what they supply.
http://protector.com.au/files/ws_catalogue.pdf
AC Cobras probably have a number of windscreen suppliers, but the GT40(GT40 Australia/Roaring Forties), Daytona's(Australian built kits) and SC 540's might be in trouble if there is a need to replace the windscreen.
Warren