If anyone has a pop-up sunroof from the mid-eighties to early nineties,especially Therma-Lite ?then I could do with advice on missing component/s.I`m trying to work out what the two tangs on the front of the glass locate into as they are missing from the framework.Possibly there should be two small brackets.Either I need the measurements/fixing hole positions to make some up ,or details of a supplier who holds old stock.Many thanks,John.