My guess its a grey import Gt4 - not an aussie one .. The ABS usually points this out, as with power rear view mirrors ( mine are power adjusted But dont flip back - oz ones didnt have that option as far as i know
Aussie ones go from between 10 - 14K depending on condition ..
Mine was priced at 12500 in the trady - but i got ot for 11K , with less modifications than the one youve listed..
Worth a peek though - if you want one - and can possibly cover repairs if needed .