Me and 2 of my mates in QLD did my Head Gasket, Took 2 days but Genuine ford Oil, Filter, Plugs, Hoses, Thermostat, Pulley's, AU Gasket, Intake manifold Gasket, Exhaust Manifold Gasket, Head bolts, Timing cover seal, Rocker Cover Seal and a few more bits cost me around $350 from FORD, with a discout due to a Mate working at the ford dealership...
Did the work ourselves, so including some drinks it was around a $400 job and there has been not a single problem with it...