language conversion for the screen can be found here www.xanavi.com.au, they dont do series 2 conversions......... yet.
if its the integrated stereo, then youll need some parts to convert to the doublle DIN. if its not, then just change the head unit, make sure its got an AUX input for the tv. speak to commsman if you want a digital tv tuner as the factory one doesnt do much in australia.