I noticed over at eurobricks that one of the guys there has produced some decent 10 stud wide Hong Kong buses. See this topic http://www.eurobricks.com/forum/index.php?showtopic=61524
It may be of interest because the Volvo B9TL chassis is also used by Dublin Bus. Might be a useful start for anyone considering producing something similar in Irish colours especially as there are some other models which look reasonably similar to those used in Ireland.