Get a few quotes before you get your car taken anywhere. Had the same dilemma with the ute a short time ago with the head lifting at 400rwkw causing extreme detonation on all 6 pistons - to the extent that chunks of spark plug were embedded where the valves seat. :( Try John at brisbane tuning and turbo, and ask him about the blue ute. He took took the engine out and apart after he was given the vehicle sans manifolds/pipework etc and installed a new longblock. Well priced, nothing was a hassle, and even ended up with more power at less boost and timing after his tune. There are others around, just get a few prices before you shell out your hard earned.