Could make an interesting project though the rear vents would suggest a 72 rather than 71.
http://cgi.ebay.co.uk/Bay-window-bus-for-spares_W0QQitemZ150250725430QQihZ005QQcategoryZ27385QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
http://cgi.ebay.co.uk/Bay-window-bus-for-spares_W0QQitemZ150250725430QQihZ005QQcategoryZ27385QQssPageNameZWDVWQQrdZ1QQcmdZViewItem