Mangosmum

First time posting here and looking for some advice help. As the title says some drunken expletive expletive expletive put a brick through the rear window of my 2010 A3 convertible. No other damage. Autoglass cant do the repair so insurance suggested I contacted Audi for advice and quote. The gentleman at Audi that I spoke too said that the rear window is not a replacement part on its own and the entire hood will need replacing at a cost of £7k for the hood and £2k for labour costs. Spoke with the insurance and they are considering whether to write it off as the cost of repair is the same as the cost of the car. Has anyone had their A3 rear window screen requiring replacement before and is it possible to do without complete hood replacement. Rather distressed at this if I may add that my car maybe written off because of a smashed window. Thanks in advance for your replies.