it all depends how much you lower it, but I lowered mine to the 'sydney kid' suggested height for best performance about 30-35mm and I needed the camber kit back and front....
bob jane, pedders, jax they are all pretty much general tyre people, to get a professional alignment get a professional suspension workshop, do you realise anyone can work at a tyre place, just on the job training, no certification nothing...
I went to selbys at tuggerah, cause they are the ones closest to me, but any decent suspension place is good, if you see rally cars, track cars or hardcore 4wds parked out front your at the right place.